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- Compositae (33 071)
- Subfamily Asteroideae (Cass.) Lindl. (19 091)
- Tribe Ambrosieae Cass. accepted as Ambrosiinae Less.
- Tribe Anthemideae Cass. (1 976)
- Tribe Astereae Cass. (3 633)
- Subtribe Afroasterinae G.L. Nesom
- Subtribe Asterinae (Cass.) Dumort. (397)
- Subtribe Astranthiinae G.L.Nesom (37)
- Subtribe Baccharidinae Less. (684)
- Subtribe Bellidinae Willk. (55)
- Subtribe Bellidinae Benth. & Hook.f. accepted as Bellidinae Willk.
- Subtribe Bellidinae (Cass. ex D.Don) G.L.Nesom accepted as Bellidinae Willk.
- Subtribe Boltoniinae G.L.Nesom (12)
- Subtribe Brachycominae G.L. Nesom accepted as Brachyscominae G.L.Nesom
- Subtribe Brachyscominae G.L.Nesom (410)
- Subtribe Celmisiinae Saldivia (88)
- Subtribe Chaetopappinae G.L.Nesom (14)
- Subtribe Chamaegerinae G.L. Nesom (6)
- Subtribe Chiliotrichinae Bonif. (29)
- Subtribe Chrysopsidinae G.L.Nesom (75)
- Subtribe Conyzinae Horan. (623)
- Genus ×Conygeron Holub accepted as ×Conyzigeron Rauschert
- Genus ×Conyzigeron Rauschert accepted as Erigeron L. (1)
- Genus Achaetogeron A.Gray accepted as Erigeron L.
- Genus Aphanostephus DC. (8)
- Genus Asterigeron Rydb. accepted as Erigeron L.
- Genus Astradelphus J.Rémy accepted as Erigeron L.
- Genus Brachyactis Ledeb. accepted as Erigeron L. (2)
- Genus Caenotus (Nutt.) Raf. accepted as Erigeron L.
- Genus Conyza Less. (153)
- Genus Conyza L. accepted as Erigeron L.
- Genus Conyzella Fabr. accepted as Conyza Less.
- Genus Conyzoides Fabr. accepted as Erigeron L.
- Genus Darwiniothamnus Harling accepted as Erigeron L. (3)
- Genus Dimorphanthes Cass. accepted as Erigeron L.
- Genus Diplemium Raf. accepted as Erigeron L.
- Genus Edemias Raf. accepted as Conyza Less.
- Genus Erigeron L. (433)
- Section Erigeron sect. Arenarioides (Rydb.) G.L.Nesom
- Section Erigeron sect. Caenotus Nutt. accepted as Conyza Less.
- Section Erigeron sect. Cincinnactis G.L.Nesom
- Section Erigeron sect. Coenotus Benth.
- Section Erigeron sect. Conyza (L.) Baillon accepted as Conyza Less.
- Section Erigeron sect. Disparipili G.L.Nesom
- Section Erigeron sect. Euerigeron F.Muell.
- Section Erigeron sect. Filifolii (Rydb.) G.L.Nesom
- Section Erigeron sect. Geniculactis G.L.Nesom
- Section Erigeron sect. Geronpternix G.L.Nesom & Noyes
- Section Erigeron sect. Gyrifolium G.L.Nesom
- Section Erigeron sect. Imbarba G.L.Nesom
- Section Erigeron sect. Karvinskia G.L.Nesom
- Section Erigeron sect. Lamprocaules G.L.Nesom
- Section Erigeron sect. Linearifolii (G.Don) G.L.Nesom
- Section Erigeron sect. Lonchophylli G.L.Nesom
- Section Erigeron sect. Meridionales G.L.Nesom
- Section Erigeron sect. Microcephalum G.L.Nesom
- Section Erigeron sect. Oritrophium (Kunth) Benth. & Hook.f. accepted as Oritrophium (Kunth) Cuatrec.
- Section Erigeron sect. Osteocaulis G.L.Nesom
- Section Erigeron sect. Peregrinus G.L.Nesom
- Section Erigeron sect. Phaenactis Nutt.
- Section Erigeron sect. Polyactis (Less.) G.L.Nesom
- Section Erigeron sect. Pterigeron DC. accepted as Streptoglossa Steetz ex F.Muell.
- Section Erigeron sect. Quercifolium G.L.Nesom
- Section Erigeron sect. Radicati (Rydb.) G.L.Nesom
- Section Erigeron sect. Radicatiformes G.L.Nesom
- Section Erigeron sect. Rhizonexus G.L.Nesom
- Section Erigeron sect. Scopulincola G.L.Nesom
- Section Erigeron sect. Spathifolium G.L.Nesom
- Section Erigeron sect. Spinosi (Alexander) G.L.Nesom & Sundberg accepted as Chloracantha G.L.Nesom, Y.B.Suh, D.R.Morgan, S.D.Sundb. & B.B.Simpson
- Section Erigeron sect. Terranea (Colla) G.L.Nesom
- Section Erigeron sect. Trimorpha (Cass.) DC.
- Section Erigeron sect. Trimorphaea (Cass.) DC.
- Section Erigeron sect. Vittadinia (A.Rich.) Baill. accepted as Vittadinia A.Rich.
- Subsection Erigeron subsect. Patentisquami Y.Ling & Y.L.Chen
- Subsection Erigeron subsect. Platyglossi (Botsch.) Y.Ling & Y.L.Chen
- Subsection Erigeron subsect. Siphonoglossi (Botsch.) Y.Ling & Y.L.Chen
- Series Erigeron ser. Breviscapi Y.Ling & Y.L.Chen
- Series Erigeron ser. Himalajenses Y.Ling & Y.L.Chen
- Series Erigeron ser. Macrophylli Šída
- Series Erigeron ser. Multiradiati Y.Ling & Y.L.Chen
- Series Erigeron ser. Politi Šída
- Series Erigeron ser. Trimorpha (Cass.) Šída
- Species Erigeron ×gypsophilus Beauverd
- Species Erigeron abajoensis Cronquist
- Species Erigeron abruptorum Lunell
- Species Erigeron abyssinicus (Sch.Bip. ex A.Rich.) Sch.Bip. ex Schweinf. & Asch accepted as Conyza abyssinica Sch.Bip. ex A.Rich.
- Species Erigeron accedens Greene accepted as Erigeron divergens Torr. & A.Gray
- Species Erigeron acer L.
- Species Erigeron acomanus Spellenb. & P.J.Knight
- Species Erigeron acris L.
- Species Erigeron acris C.B.Clarke accepted as Erigeron pulchellus Michx.
- Species Erigeron acutatus Greene
- Species Erigeron adenolepis (Fernald) Semple
- Species Erigeron adenophorus Greenm.
- Species Erigeron adscendens Turcz.
- Species Erigeron aegyptiacus L.
- Species Erigeron aegyptiacus Kurz accepted as Erigeron asteroides Wall.
- Species Erigeron aellenii Rech.f. accepted as Psychrogeton aellenii (Rech.f.) Grierson
- Species Erigeron aequifolius H.M.Hall
- Species Erigeron affinis DC. accepted as Erigeron scaposus DC.
- Species Erigeron affinis V.M.Badillo accepted as Oritrophium venezuelense (Steyerm.) Cuatrec.
- Species Erigeron alamosanus Rose accepted as Erigeron velutipes Hook. & Arn.
- Species Erigeron alaskanus Cronquist accepted as Erigeron hyperboreus Greene
- Species Erigeron alatus D.Don accepted as Blumea alata (D.Don) DC.
- Species Erigeron albidum (Willd. ex Spreng.) A.Gray accepted as Erigeron bonariensis L.
- Species Erigeron albidus (Willd. ex Spreng.) Herter
- Species Erigeron albidus (Willd. ex Spreng.) A.Gray accepted as Erigeron sumatrensis Retz.
- Species Erigeron alcicornutus Greenm. accepted as Erigeron inoptatus A.Gray
- Species Erigeron alexeenkoi (Krasch.) Botsch.
- Species Erigeron alexeenkoi (Krasch.) Krasch. accepted as Psychrogeton alexeenkoi Krasch.
- Species Erigeron algidus Jeps.
- Species Erigeron aliceae Howell
- Species Erigeron aliciae Howell
- Species Erigeron alinae (F.Muell.) Boerl. accepted as Vittadinia alinae F.Muell.
- Species Erigeron allisonii D.B.Poind., B.R.Keener & Noyes
- Species Erigeron allobrogorum Beauverd
- Species Erigeron allochrous Botsch.
- Species Erigeron allocotus S.F.Blake
- Species Erigeron alpestre Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron alpestris Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron alpestris Hoppe ex Nyman accepted as Erigeron pulchellus Michx.
- Species Erigeron alpicola (Makino) Makino accepted as Erigeron thunbergii subsp. glabratus (A.Gray) Hara
- Species Erigeron alpiniformis Cronquist
- Species Erigeron alpinus L.
- Species Erigeron alpinus Rchb.
- Species Erigeron alpinus Pursh accepted as Erigeron pulchellus Michx.
- Species Erigeron alpinus Less. accepted as Erigeron pulchellus Michx.
- Species Erigeron alpinus Lam. accepted as Erigeron acer L.
- Species Erigeron alpinus Ledeb. accepted as Erigeron acer L.
- Species Erigeron altaicus Popov
- Species Erigeron alternifolius (Lawesson & Adsersen) N.Andrus & Tye
- Species Erigeron altissimus R.R.Stewart
- Species Erigeron ambiguus Nutt.
- Species Erigeron ambiguus (DC.) Sch.Bip. accepted as Erigeron bonariensis L.
- Species Erigeron ambiguus Sch.Bip. ex Webb & Berthel. accepted as Erigeron bonariensis L.
- Species Erigeron ambiguus F.Muell. accepted as Iotasperma australiense G.L.Nesom
- Species Erigeron amorphoglossus Boiss. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron amphibolus Ledeb. accepted as Erigeron caucasicus Steven
- Species Erigeron amplexicaulis Desf.
- Species Erigeron amplexicaulis Sessé & Moc.
- Species Erigeron amplexicaulis Torr. ex Torr. & A.Gray
- Species Erigeron amplexicaulis Hort. ex Poir. accepted as Erigeron philadelphicus Michx.
- Species Erigeron amplifolius Howell accepted as Erigeron eliceae
- Species Erigeron anchana G.L.Nesom
- Species Erigeron andersonii A.Gray accepted as Oreostemma alpigenum var. andersonii (A.Gray) G.L.Nesom
- Species Erigeron andicola DC.
- Species Erigeron andinus Phil. accepted as Erigeron andicola DC.
- Species Erigeron androssovii Popov
- Species Erigeron andryaloides (DC.) Benth. ex C.B.Clarke
- Species Erigeron andryaloides Boiss.
- Species Erigeron angulosus Gaudin accepted as Erigeron acris subsp. angulosus (Gaudin) Vacc.
- Species Erigeron angustatus Nyman accepted as Erigeron acer L.
- Species Erigeron angustatus (A.Gray) Greene accepted as Erigeron greenei G.L.Nesom
- Species Erigeron angustifolius Phil. accepted as Erigeron myosotis Pers.
- Species Erigeron angustifolius (A.Gray) Rydb. accepted as Erigeron glacialis var. glacialis
- Species Erigeron angustissimus Lindl. ex DC.
- Species Erigeron anicularum Greene accepted as Erigeron glabellus Nutt.
- Species Erigeron anisophyllus Rech.f.
- Species Erigeron annuactis G.L.Nesom
- Species Erigeron annuus (L.) Desf.
- Species Erigeron annuus (L.) Pers. accepted as Erigeron annuus (L.) Desf.
- Species Erigeron annuus Sessé & Moc. accepted as Bellis annua L.
- Species Erigeron anodontus Lunell accepted as Erigeron glabellus var. pubescens Hook.
- Species Erigeron anomalus DC. accepted as Aster menthodorus (Benth.) Govaerts
- Species Erigeron antonius Greene ex C.F.Baker
- Species Erigeron apenninianus Georgi accepted as Erigeron pulchellus Michx.
- Species Erigeron aphanactis (A.Gray) Greene
- Species Erigeron apiculatus Benth.
- Species Erigeron apiculatus Greene accepted as Erigeron eximius Greene
- Species Erigeron aprutii Vierh.
- Species Erigeron apurensis Kunth
- Species Erigeron apurensis (Kunth) Griseb. accepted as Conyza laevigata (Rich.) Pruski
- Species Erigeron aquarius Standl. & Steyerm.
- Species Erigeron arachnoideus Bornm.
- Species Erigeron aragonensis Vierh. accepted as Erigeron uniflorus subsp. aragonensis (Vierh.) O.Bolòs & Vigo
- Species Erigeron araneosus Urb. accepted as Laennecia araneosa (Urb.) G.Sancho & Pruski
- Species Erigeron araucanus Phil. accepted as Erigeron andicola DC.
- Species Erigeron arcticus Rouy
- Species Erigeron arctophilus Rech.f. accepted as Erigeron acer subsp. arctophilus (Rech.f.) Rech.f.
- Species Erigeron arenarioides (D.C.Eaton ex A.Gray) A.Gray ex Rydb.
- Species Erigeron arenarius Greene accepted as Erigeron bellidiastrum var. arenarius (Greene) G.L.Nesom
- Species Erigeron argaeus Vierh. accepted as Erigeron cilicicus Boiss. ex Vierh.
- Species Erigeron argentatus A.Gray
- Species Erigeron arisolius G.L.Nesom
- Species Erigeron aristhales Phil.
- Species Erigeron arizonicus A.Gray
- Species Erigeron armenus Boiss. & Huet ex Boiss. accepted as Erigeron pulchellus Michx.
- Species Erigeron armerifolius Turcz. ex DC.
- Species Erigeron artemisiifolius (Meyen & Walp.) Sch.Bip. accepted as Laennecia artemisiifolia (Meyen & Walp.) G.L.Nesom
- Species Erigeron artemisioides (Meyen & Walp.) Sch.Bip.
- Species Erigeron arthrotrichus Hiern accepted as Felicia welwitschii (Hiern) Grau
- Species Erigeron arthurii B.Boivin
- Species Erigeron asper Nutt. accepted as Erigeron glabellus var. glabellus Nutt.
- Species Erigeron asperugineus (D.C.Eaton) A.Gray
- Species Erigeron asperulus Fisch. & C.A.Mey.
- Species Erigeron asperum Nutt. accepted as Erigeron glabellus var. glabellus Nutt.
- Variety Erigeron asperum var. asperum accepted as Erigeron asperum Nutt.
- Variety Erigeron asperum var. pubescens (Hook.) Breitung accepted as Erigeron glabellus var. pubescens Hook.
- Species Erigeron asteroides Wall.
- Species Erigeron asteroides Wall.
- Species Erigeron asteroides Hort.Angl. ex Link
- Species Erigeron asteroides Roxb. accepted as Erigeron sublyratus Roxb. ex DC.
- Species Erigeron asteroides Andrz. ex Besser accepted as Erigeron acris subsp. podolicus (Besser) Nyman
- Species Erigeron asteroides Hoppe ex Nyman accepted as Erigeron pulchellus Michx.
- Species Erigeron astranthioides De Jong & G.L.Nesom
- Species Erigeron atticus Vill.
- Species Erigeron aucheri (DC.) Boiss. accepted as Erigeron khorassanicus Boiss.
- Species Erigeron aurantiacus Regel
- Species Erigeron aureus Greene
- Species Erigeron austinae Greene
- Species Erigeron austiniae Greene accepted as Erigeron chrysopsidis var. austiniae (Greene) Cronquist
- Species Erigeron australis Hornem. ex Spreng.
- Species Erigeron australis Phil. accepted as Symphyotrichum glabrifolium (DC.) G.L.Nesom
- Species Erigeron aviatorum Herter
- Species Erigeron awapensis S.L.Welsh accepted as Erigeron abajoensis Cronquist
- Species Erigeron azurens Regel ex Popov
- Species Erigeron azureus Regel ex Popov
- Species Erigeron azureus Regel ex O.Fedtsch. & B.Fedtsch
- Species Erigeron badachschanicus Botsch.
- Species Erigeron bahamensis Scop.
- Species Erigeron bahamensis Reusch ex Colla
- Species Erigeron baicalensis Botsch.
- Species Erigeron bakeri Wooton & Standl. accepted as Erigeron subtrinervis Rydb. ex Porter & Britton
- Species Erigeron barbarensis G.L.Nesom & T.Van Devender
- Species Erigeron barbellulatus Greene
- Species Erigeron barcinonensis Sennen
- Species Erigeron bardsirica Parsa
- Species Erigeron basalticus Hoover
- Species Erigeron basaseachensis G.L.Nesom
- Species Erigeron basilobatus S.F.Blake
- Species Erigeron batumensis Vierh. ex Grossh.
- Species Erigeron baumii O.Hoffm.
- Species Erigeron bellidiastroides Griseb.
- Species Erigeron bellidiastrum Nutt.
- Species Erigeron bellidifolius Muhl. ex Willd.
- Species Erigeron bellidiformis Popov
- Species Erigeron bellidioides Griseb.
- Species Erigeron bellidioides (Hook.f.) S.J.Forbes & D.I.Morris
- Species Erigeron bellidioides (Buch.-Ham. ex D.Don) Benth. ex C.B.Clarke
- Species Erigeron bellidioides Benth. & Hook.f.
- Species Erigeron bellidioides Spenn. accepted as Bellis annua L.
- Species Erigeron bellioides DC.
- Species Erigeron benghalensis (B.Heyne ex DC.) M.R.Almeida accepted as Erigeron sublyratus Roxb. ex DC.
- Species Erigeron benzii Widder
- Species Erigeron berteroanus DC. accepted as Erigeron fasciculatus Colla
- Species Erigeron bethlehemi Schöpf
- Species Erigeron bethlehemi Schoepf accepted as Erigeron pulchellus Michx.
- Species Erigeron beyrichii Hort.Berol. ex Torr. & A.Gray
- Species Erigeron biflorus Phil. accepted as Erigeron andicola DC.
- Species Erigeron bigelovii A.Gray
- Species Erigeron bilbaoanus Cabrera
- Species Erigeron biolettii Greene
- Species Erigeron biramosus Botsch.
- Species Erigeron biserialis Less.
- Species Erigeron bistiensis G.L.Nesom & Hevron accepted as Erigeron pulcherrimus A.Heller
- Species Erigeron bithynicus Vierh. accepted as Erigeron pulchellus Michx.
- Species Erigeron bizgensis Rech.f. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron blakei Cabrera
- Species Erigeron blanchetii Sch.Bip. ex Baker accepted as Apopyros corymbosus (Hook. & Arn.) G.L.Nesom
- Species Erigeron blasdalei Greene accepted as Erigeron foliosus var. hartwegii (Greene) Jeps.
- Species Erigeron blepharophyllus S.F.Blake accepted as Oritrophium blepharophyllum (S.F.Blake) Cuatrec.
- Species Erigeron blochmanae Greene
- Species Erigeron bloomeri A.Gray
- Species Erigeron boergeri Herter
- Species Erigeron bonariensis L.
- Species Erigeron bonariensis Hort. ex Link
- Species Erigeron bonjeani Colla
- Species Erigeron bonplandii Buchanan accepted as Celmisia bonplandii (Buchanan) Allan
- Species Erigeron borealis (Vierh.) Simmons
- Species Erigeron bovei (DC.) Boiss. accepted as Doellia bovei (DC.) Anderb.
- Species Erigeron brachycephalus H.Lindb. accepted as Erigeron acris subsp. brachycephalus (H.Lindb.) Hiitonen
- Species Erigeron brachycomoides (F.Muell.) Boerl.
- Species Erigeron brachyphyllus
- Species Erigeron brachyspermus Botsch.
- Species Erigeron brandegeei Millsp.
- Species Erigeron brandegeei A.Gray accepted as Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & A.Gray
- Species Erigeron brazoensis Buckley accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron breunius Murr
- Species Erigeron brevicaulis Phil. accepted as Erigeron leptopetalus Phil.
- Species Erigeron breviscapus (Vaniot) Hand.-Mazz.
- Species Erigeron breweri A.Gray
- Species Erigeron brittonianus Rusby accepted as Erigeron rosulatus Wedd.
- Species Erigeron buchii Urb.
- Species Erigeron bungei Boiss.
- Species Erigeron burejensis Barkalov
- Species Erigeron burnatii F.O.Wolf
- Species Erigeron burnatii F.O.Wolf
- Species Erigeron byei S.D.Sundb. & G.L.Nesom
- Species Erigeron cabbrerae
- Species Erigeron cabrerae Solbrig accepted as Erigeron andicola DC.
- Species Erigeron cabrerae Dittrich accepted as Erigeron calderae A.Hansen
- Species Erigeron cabulicus (Boiss.) Botsch.
- Species Erigeron caeruleus Urb.
- Species Erigeron caespitans Kom.
- Species Erigeron caespitosus Nutt.
- Species Erigeron calcicola Greenm.
- Species Erigeron calcicola (J.R.Allison) D.B.Poind., B.R.Keener & Noyes
- Species Erigeron caldasii Cuatrec. accepted as Erigeron ecuadoriensis Hieron.
- Species Erigeron calderae A.Hansen
- Species Erigeron californicus Jeps. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron callianthemus Greene accepted as Erigeron glacialis var. glacialis
- Species Erigeron calvus Coville
- Species Erigeron campanensis Valdeb., Lowrey & Stuessy
- Species Erigeron camphoratus L. accepted as Pluchea foetida (L.) DC.
- Species Erigeron camporum (Gardner) Sch.Bip. ex Benth. & Hook.f. accepted as Inulopsis camporum (Gardner) G.L.Nesom
- Species Erigeron camporum Sch.Bip. ex Baker accepted as Inulopsis camporum (Gardner) G.L.Nesom
- Species Erigeron camposportoi Cabrera
- Species Erigeron canaani S.L.Welsh
- Species Erigeron canadensis L.
- Species Erigeron canadensis Brot. accepted as Erigeron rufescens Link ex Steud.
- Species Erigeron canadensis Ten. accepted as Erigeron bonariensis L.
- Species Erigeron canariensis Šída accepted as Erigeron calderae A.Hansen
- Species Erigeron candidissimus Rech.f. & Edelb. accepted as Psychrogeton candidissimus (Rech.f. & Edelb.) Grierson
- Species Erigeron candidus Widder accepted as Erigeron glabratus subsp. candidus (Widder)
- Species Erigeron candollei F.Muell. accepted as Minuria denticulata (DC.) Benth.
- Species Erigeron candollei F.Muell. ex Benth. accepted as Minuria denticulata (DC.) Benth.
- Species Erigeron canescens Sch.Bip.
- Species Erigeron canescens Willd.
- Species Erigeron canescens Parry
- Species Erigeron canescens (Hook.) Torr. & A.Gray accepted as Erigeron caespitosus Nutt.
- Species Erigeron canescens Parry ex A.Gray accepted as Erigeron ochroleucus Nutt.
- Species Erigeron canescens Hook. & Arn. accepted as Erigeron stenophyllus Nutt.
- Species Erigeron canus A.Gray
- Species Erigeron capensis Houtt. accepted as Hilliardiella pinifolia (Less.) H.Rob.
- Species Erigeron capillipes Ekman ex Urb.
- Species Erigeron capusi (Franch.) Novopokr.
- Species Erigeron caramanicus Bornm.
- Species Erigeron cardaminifolius (Kunth) Wedd. accepted as Conyza cardaminifolia Kunth
- Species Erigeron carolinensis Crantz accepted as Euthamia caroliniana (L.) Greene ex Porter & Britton
- Species Erigeron carolinianus L. accepted as Euthamia caroliniana (L.) Greene ex Porter & Britton
- Species Erigeron carpaticus Griseb. & Schenk accepted as Erigeron atticus Vill.
- Species Erigeron carringtoniae S.L.Welsh accepted as Erigeron untermannii S.L.Welsh & Goodrich
- Species Erigeron cascadensis A.Heller
- Species Erigeron catharinensis Cabrera accepted as Leptostelma catharinense (Cabrera) A.M.Teles & Sobral
- Species Erigeron caucasicus Steven
- Species Erigeron caulinifolius G.L.Nesom
- Species Erigeron cavernensis S.L.Welsh & N.D.Atwood
- Species Erigeron cedretorum Rech.f.
- Species Erigeron celakovskyi Rohlena
- Species Erigeron celerieri Emb. & Maire
- Species Erigeron cervinus Greene
- Species Erigeron chanousii Vaccari ex Fiori
- Species Erigeron chelanensis H.St.John accepted as Erigeron leibergii Piper
- Species Erigeron chiangii G.L.Nesom
- Species Erigeron chihuahuanus Greene
- Species Erigeron chilensis (Spreng.) D.Don ex G.Don accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron chilensis (Spreng.) D.Don ex Loudon accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron chinensis Siebold ex DC. accepted as Blumea viscosa (Mill.) V.M.Badillo
- Species Erigeron chinensis Jacq. accepted as Conyza laevigata (Rich.) Pruski
- Species Erigeron chionophilus Wedd.
- Species Erigeron chionophilus Boiss.
- Species Erigeron chiriquensis Standl.
- Species Erigeron chrysocoma Walp.
- Species Erigeron chrysopsidis A.Gray
- Species Erigeron cieloensis G.L.Nesom
- Species Erigeron ciliaris Phil. accepted as Erigeron andicola DC.
- Species Erigeron ciliaris Miq. accepted as Inula ciliaris (Miq.) Maxim.
- Species Erigeron ciliatus Ledeb. accepted as Symphyotrichum ciliatum (Ledeb.) G.L.Nesom
- Species Erigeron cilicicus Boiss. ex Vierh.
- Species Erigeron cilicicus Boiss. ex Tchich.
- Species Erigeron cilicius Boiss.
- Species Erigeron ciliolatus Greene
- Species Erigeron cinarescens Wedd. accepted as Conyza deserticola Phil.
- Species Erigeron cinerascens Sch.Bip. accepted as Conyza deserticola Phil.
- Species Erigeron cinerascens Sch.Bip. ex Wedd. accepted as Conyza deserticola Phil.
- Species Erigeron cinereumus
- Species Erigeron cinereus Hook. & Arn.
- Species Erigeron cinereus A.Gray accepted as Erigeron tracyi Greene
- Species Erigeron circulis G.L.Nesom
- Species Erigeron clematideus Sch.Bip. ex Walp. accepted as Microglossa mespilifolia (Less.) B.L.Rob.
- Species Erigeron clokeyi Cronquist
- Species Erigeron cochinchinensis Lour. accepted as Blumea aromatica DC.
- Species Erigeron cochinchinensis Spreng. ex DC. accepted as Blumea aromatica DC.
- Species Erigeron cochlearifolius Phil. accepted as Inula ciliaris (Miq.) Maxim.
- Species Erigeron cocuyensis Cuatrec. accepted as Oritrophium cocuyense (Cuatrec.) Cuatrec.
- Species Erigeron coeruleus Popov
- Species Erigeron colinensis Phil. accepted as Conyza spiculosa (Hook. & Arn.) Zardini
- Species Erigeron collinus Sch.Bip.
- Species Erigeron colomexicanus A.Nelson accepted as Erigeron tracyi Greene
- Species Erigeron columnaris G.L.Nesom
- Species Erigeron coma-aurea Sch.Bip. accepted as Chrysocoma coma-aurea L.
- Species Erigeron commixtus Greene accepted as Erigeron tracyi Greene
- Species Erigeron comonduanus Millsp.
- Species Erigeron compactus S.F.Blake
- Species Erigeron compositus Pursh
- Species Erigeron conchophyllus Walp. accepted as Erigeron armerifolius Turcz. ex DC.
- Species Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray
- Species Erigeron condensatus (D.C.Eaton) Greene accepted as Erigeron concinnus var. condensatus D.C.Eaton
- Species Erigeron conditii D.J.Keil
- Species Erigeron confinis Howell accepted as Erigeron foliosus var. confinis (Howell) Jeps.
- Species Erigeron congestus Greene accepted as Erigeron aphanactis var. congestus (Greene) Cronquist
- Species Erigeron conjunctus Millsp.
- Species Erigeron consanguineus (Ledeb.) Novopokr. accepted as Erigeron komarovii Botsch.
- Species Erigeron consanguineus (Phil.) Cabrera accepted as Conyza gayana Phil.
- Species Erigeron consimilis Cronquist
- Species Erigeron consobrinus Greene
- Species Erigeron conspicuus Rydb. accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron contortus Desf.
- Species Erigeron contortus Desf. ex Pers. accepted as Erigeron bonariensis L.
- Species Erigeron controversus Greene accepted as Erigeron garrettii A.Nelson
- Species Erigeron conyzoides F.Muell.
- Species Erigeron conyzoides Hunter ex Ridl.
- Species Erigeron copelandii Eastw. accepted as Tetramolopium tenerrimum (Less.) Nees
- Species Erigeron coranopifolius Clémenc. ex Willk. & Lange accepted as Erigeron bonariensis L.
- Species Erigeron cordatus (Kuntze) Cabrera accepted as Conyza cordata Kuntze
- Species Erigeron coronarius Greene
- Species Erigeron coroniglandifer G.L.Nesom
- Species Erigeron coronopifolius Schrank
- Species Erigeron coronopifolius Clem. ex Sennen
- Species Erigeron corrales-molinensis Danton
- Species Erigeron corymbosus Nutt.
- Species Erigeron corymbosus Wallr. accepted as Erigeron acris L.
- Species Erigeron coulteri Porter
- Species Erigeron coulteri Porter & J.M.Coult.
- Species Erigeron covillei Greene accepted as Erigeron breweri var. covillei (Greene) G.L.Nesom
- Species Erigeron coxii Phil.
- Species Erigeron coxii Phil. accepted as Inula ciliaris (Miq.) Maxim.
- Species Erigeron crassicaulis Sch.Bip.
- Species Erigeron crenatus Eastw.
- Species Erigeron crenatus Eastw. ex I.M.Johnst.
- Species Erigeron crispulus Borbás accepted as Erigeron acris L.
- Species Erigeron crispus Pourr. accepted as Erigeron bonariensis L.
- Species Erigeron croaticum Gand.
- Species Erigeron croaticus Gand.
- Species Erigeron crocifolius (Kunth) Wedd. accepted as Oritrophium crocifolium (Kunth) Cuatrec.
- Species Erigeron cronquistii Maguire
- Species Erigeron cuatrocienegensis G.L.Nesom
- Species Erigeron culbertsonii Greene ex C.F.Baker
- Species Erigeron cuneifolius DC.
- Species Erigeron cupularoides Freyn
- Species Erigeron curvifolius Piper accepted as Erigeron chrysopsidis A.Gray
- Species Erigeron cuspidatus Spreng. ex DC. accepted as Blumea oxyodonta DC.
- Species Erigeron cyanactis Rech.f.
- Species Erigeron cymosus Walter
- Species Erigeron dactyloides (Greenm.) G.L.Nesom
- Species Erigeron daenensis Vierh.
- Species Erigeron darentssiaticus Beauverd
- Species Erigeron darrellianus Hemsl.
- Species Erigeron daveauanus (Sennen) Greuter
- Species Erigeron daveauiana
- Species Erigeron davisii (Cronquist) G.L.Nesom
- Species Erigeron deamii B.L.Rob. accepted as Erigeron karvinskianus DC.
- Species Erigeron debilis (A.Gray) Rydb. accepted as Erigeron nivalis Nutt.
- Species Erigeron decipiens Beauverd
- Species Erigeron decoloratus H.Lindb. accepted as Erigeron acris subsp. brachycephalus (H.Lindb.) Hiitonen
- Species Erigeron decumbens Nutt.
- Species Erigeron decumbens Eastw. accepted as Erigeron petrophilus var. viscidulus (A.Gray) G.L.Nesom
- Species Erigeron decumbens Benth. accepted as Erigeron foliosus Nutt.
- Species Erigeron decurrens Vahl accepted as Laggera decurrens (Vahl) Hepper & J.R.I.Wood
- Species Erigeron decurrens DC. accepted as Pterigeron decurrens (DC.) Benth.
- Species Erigeron dejongii G.L.Nesom
- Species Erigeron delicatus Cronquist accepted as Erigeron cervinus Greene
- Species Erigeron delphinifolius Willd.
- Species Erigeron delphinifolius A.Gray accepted as Erigeron neomexicanus A.Gray
- Species Erigeron deminutus Wooton & Standl. accepted as Erigeron formosissimus Greene
- Species Erigeron denalii A.Nelson
- Species Erigeron dentatus Burm.f. accepted as Conyza scabrida DC.
- Species Erigeron denticulatus Burm.f. accepted as Pluchea indica (L.) Less.
- Species Erigeron depilis Phil. accepted as Aster squamatus (Spreng.) Hieron.
- Species Erigeron deserticola Phil.
- Species Erigeron deustus Greene accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron dianthifolius Griseb.
- Species Erigeron diaphanus Sch.Bip.
- Species Erigeron dicladus Greene accepted as Erigeron tracyi Greene
- Species Erigeron dielsii (Vaniot) H.Lév. accepted as Erigeron breviscapus (Vaniot) Hand.-Mazz.
- Species Erigeron diffusus Aiton
- Species Erigeron diffusus Pers. accepted as Noticastrum diffusum (Pers.) Cabrera
- Species Erigeron diplopappoides S.Schauer
- Species Erigeron diplopappus (Hook.) Nutt.
- Species Erigeron diplostephioides (DC.) Botsch. accepted as Aster diplostephioides (DC.) Benth. ex C.B.Clarke
- Species Erigeron discernendus Rech.f. accepted as Erigeron pseuderiocephalus Popov
- Species Erigeron discoideus Kellogg accepted as Laennecia coulteri (A.Gray) G.L.Nesom
- Species Erigeron disparipilus Cronquist
- Species Erigeron dissectus Urb.
- Species Erigeron divaricatus Nutt. accepted as Erigeron divergens Torr. & A.Gray
- Species Erigeron divaricatus Michx. accepted as Conyza ramosissima Cronquist
- Species Erigeron divergens Torr. & A.Gray
- Species Erigeron divergens Hook. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron diversifolius Cav. accepted as Erigeron gouanii L.
- Species Erigeron diversifolius Rich. ex Rchb. accepted as Bellis annua L.
- Species Erigeron dolichostylus Botsch. accepted as Psychrogeton cabulicus Boiss.
- Species Erigeron dolomiticola (J.R.Allison) D.B.Poind., B.R.Keener & Noyes
- Species Erigeron domesticus Larrañaga
- Species Erigeron domingensis Urb.
- Species Erigeron douglasii Torr. & A.Gray accepted as Erigeron foliosus Nutt.
- Species Erigeron droebachensis O.F.Müll. ex Retz.
- Species Erigeron droebachensis O.Muell.
- Species Erigeron droebachiensis O.F.Müll. accepted as Erigeron acris subsp. droebachiensis (O.F.Müll.) Arcang.
- Species Erigeron drummondii Greene
- Species Erigeron dryophyllus A.Gray
- Species Erigeron dubius Spreng. accepted as Hysterionica resinosa (Spreng.) P.L.R.Moraes
- Species Erigeron dubius (Thunb.) Makino accepted as Erigeron thunbergii A.Gray
- Species Erigeron dumetorum Phil.
- Species Erigeron dusenii Vierh. accepted as Erigeron cinereus Hook. & Arn.
- Species Erigeron earlei Britton & P.Wilson
- Species Erigeron earlei Rydb.
- Species Erigeron eastwoodiae Wooton & Standl. accepted as Erigeron bellidiastrum Nutt.
- Species Erigeron eatonii A.Gray
- Species Erigeron echioides Sodiro
- Species Erigeron echioides Sch.Bip. ex Schweinf. accepted as Conyza tigrensis Oliv. & Hiern
- Species Erigeron echioides Sch.Bip. accepted as Conyza tigrensis Oliv. & Hiern
- Species Erigeron ecuadoriensis Hieron.
- Species Erigeron edelbergii Rech.f. & Köie
- Species Erigeron elatior (A.Gray) Greene
- Species Erigeron elatus (Hook.) Greene
- Species Erigeron elbrusensis Boiss.
- Species Erigeron elbursensis Vierh.
- Species Erigeron eldensis Greene accepted as Erigeron eximius Greene
- Species Erigeron elegans Parsa
- Species Erigeron elegans Greene
- Species Erigeron elegantulus Greene
- Species Erigeron eliceae
- Species Erigeron elkoensis A.Nelson & J.F.Macbr. accepted as Erigeron asperugineus (D.C.Eaton) A.Gray
- Species Erigeron ellisii Hook.f.
- Species Erigeron ellisii Hook.
- Species Erigeron elmeri (Greene) Greene
- Species Erigeron elongatiformis (Novopokr.) Serg. accepted as Erigeron acris subsp. brachycephalus (H.Lindb.) Hiitonen
- Species Erigeron elongatus Moench accepted as Erigeron acer L.
- Species Erigeron elongatus Ledeb. accepted as Erigeron acris subsp. politus (Fr.) H.Lindb.
- Species Erigeron emodi I.M.Turner
- Species Erigeron enderi Murr
- Species Erigeron engadensis Brügger
- Species Erigeron engelmannii A.Nelson
- Species Erigeron epiroticus (Vierh.) Halácsy
- Species Erigeron eradiatus (A.Gray) Piper
- Species Erigeron erianthus Speg. accepted as Erigeron leptopetalus Phil.
- Species Erigeron eriocalyx (Ledeb.) Vierh.
- Species Erigeron eriocephalus J.Vahl
- Species Erigeron eriocephalus Vahl
- Species Erigeron eriocephalus Regel & Schmalh. accepted as Erigeron schmalhausenii Popov
- Species Erigeron eriophyllus A.Gray accepted as Laennecia eriophylla (A.Gray) G.L.Nesom
- Species Erigeron eruptens G.L.Nesom
- Species Erigeron ervendbergii A.Gray
- Species Erigeron erythrolepis Sch.Bip.
- Species Erigeron eucephaloides Greene accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron evermannii Rydb.
- Species Erigeron exaltatus Vierh.
- Species Erigeron exilis A.Gray ex A.Gray
- Species Erigeron eximius Greene
- Species Erigeron expansus Poepp.
- Species Erigeron expansus Poepp. ex Spreng. accepted as Symphyotrichum subulatum var. parviflorum (Nees) S.D.Sundb.
- Species Erigeron exstipulatus Schumach.
- Species Erigeron exstipulatus Schumach. & Thonn. accepted as Blumea lacera (Burm.f.) DC.
- Species Erigeron faetidus Burm.f. accepted as Nidorella foetida (L.) DC.
- Species Erigeron falcatus D.Don
- Species Erigeron falconeri (C.B.Clarke) Botsch.
- Species Erigeron farreri (W.W.Sm. & Jeffrey) Botsch. accepted as Aster farreri W.W.Sm. & Jeffrey
- Species Erigeron fasciculatus Colla
- Species Erigeron fastigiatus Hornem.
- Species Erigeron favratii Gremli
- Species Erigeron feddei (H.Lév. & Vaniot) Botsch. accepted as Aster spathulifolius Maxim.
- Species Erigeron fernandezianus (Colla) Harling accepted as Erigeron fernandezius (Colla) Harling
- Species Erigeron fernandezianus (Colla) Solbrig accepted as Erigeron fernandezius (Colla) Harling
- Species Erigeron fernandezii Phil. accepted as Erigeron myosotis Pers.
- Species Erigeron fernandezius (Colla) Harling
- Species Erigeron ferrugineus Wedd. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron filifolius (Hook.) Nutt.
- Species Erigeron filiformis Spreng. accepted as Neja filiformis (Spreng.) Nees
- Species Erigeron flabellifolius Rydb.
- Species Erigeron flaccidus (Bunge) Botsch.
- Species Erigeron flagellaris A.Gray
- Species Erigeron flagellaris Boiss. & Hausskn. ex Boiss. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron flagellifolius Cabrera accepted as Conyza stenophylla Phil.
- Species Erigeron flahaultianus Thell. accepted as Erigeron sumatrensis Retz.
- Species Erigeron flettii G.N.Jones
- Species Erigeron flexuosus Cronquist accepted as Erigeron lassenianus var. lassenianus Greene
- Species Erigeron floribundus (Kunth) Sch.Bip.
- Species Erigeron florifer Hook. accepted as Townsendia florifer (Hook.) A.Gray
- Species Erigeron fluens G.L.Nesom
- Species Erigeron foetidus L. accepted as Nidorella foetida (L.) DC.
- Species Erigeron foliatus D.Don
- Species Erigeron foliosissimus Greene accepted as Erigeron platyphyllus Greene
- Species Erigeron foliosus Nutt.
- Species Erigeron foliosus Don ex Steud.
- Species Erigeron formosissimus Greene
- Species Erigeron forreri (Greene) Greene
- Species Erigeron fragilis Greene accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron fragrans Spreng.
- Species Erigeron fraternus Greene
- Species Erigeron frigidum Wedd. accepted as Oritrophium limnophilum (Sch.Bip.) Cuatrec.
- Species Erigeron frigidus Boiss. ex DC.
- Species Erigeron frigidus Boiss.
- Species Erigeron frigidus Boiss. & Buhse ex Boiss. accepted as Erigeron pulchellus Michx.
- Species Erigeron frigidus Wedd. accepted as Oritrophium limnophilum (Sch.Bip.) Cuatrec.
- Species Erigeron frondeus Greene accepted as Erigeron coulteri Porter
- Species Erigeron frutescens Phil.
- Species Erigeron fruticetorum Rydb. accepted as Erigeron formosissimus Greene
- Species Erigeron fruticosus DC. accepted as Erigeron fernandezius (Colla) Harling
- Species Erigeron fuegiae Vierh.
- Species Erigeron fuertesii Urb.
- Species Erigeron fukuyamae Kitam.
- Species Erigeron fundus G.L.Nesom
- Species Erigeron funkii Sch.Bip. ex Nyman accepted as Erigeron pulchellus Michx.
- Species Erigeron furcatus Greene accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron galeottii (A.Gray) Greene
- Species Erigeron gardneri Cabrera accepted as Exostigma rivulare (Gardner) G.Sancho
- Species Erigeron garrettii A.Nelson
- Species Erigeron gaudichaudii DC. accepted as Erigeron leptorhizon DC.
- Species Erigeron gaudinii Brügger accepted as Erigeron schleicheri Gremli
- Species Erigeron gayanum Remy accepted as Erigeron myosotis Pers.
- Species Erigeron gayanus J.Rémy
- Species Erigeron geiseri Shinners
- Species Erigeron geminilobus Millsp.
- Species Erigeron gilensis Wooton & Standl.
- Species Erigeron gilliesii (Hook. & Arn.) Cabrera
- Species Erigeron glabellus Nutt.
- Species Erigeron glaber Hoppe ex Nyman accepted as Erigeron pulchellus Michx.
- Species Erigeron glaberrimus Scheele ex Nyman accepted as Erigeron acer L.
- Species Erigeron glabratus Reiche
- Species Erigeron glabratus Hoppe
- Species Erigeron glabratus Hoppe & Hornsch. ex Bluff & Fingerh. accepted as Erigeron acer L.
- Species Erigeron glabratus Hook. accepted as Erigeron acer L.
- Species Erigeron glabratus endr. ex Willk. & Lange accepted as Erigeron pulchellus Michx.
- Species Erigeron glabrescens Brügger
- Species Erigeron glabrifolius DC. accepted as Symphyotrichum glabrifolium (DC.) G.L.Nesom
- Species Erigeron glacialis (Nutt.) A.Nelson
- Species Erigeron glacialis Fisch. ex Herder accepted as Erigeron pulchellus Michx.
- Species Erigeron glandulosus Porter & J.M.Coult.
- Species Erigeron glandulosus Porter accepted as Erigeron vetensis Rydb.
- Species Erigeron glandulosus Hegetschw. accepted as Erigeron schleicheri Gremli
- Species Erigeron glandulosus Poir. accepted as Pityopsis graminifolia (Michx.) Nutt.
- Species Erigeron glareosus Brügger
- Species Erigeron glaucifolius Kuntze accepted as Hysterionica glaucifolia (Kuntze) Solbrig
- Species Erigeron glaucus Ker Gawl.
- Species Erigeron glomeratus Salisb. accepted as Erigeron gouanii L.
- Species Erigeron glomeratus Spreng. ex DC. accepted as Blumea mollis (D.Don) Merr.
- Species Erigeron glutinosus Desf. accepted as Psiadia glutinosa Jacq.
- Species Erigeron glutinosus L. accepted as Chiliadenus glutinosus (L.) Fourr.
- Species Erigeron gnaphalioides Kunth
- Species Erigeron gnaphalodes
- Species Erigeron gonzaloi Sennen
- Species Erigeron goodrichii S.L.Welsh
- Species Erigeron gormanii Greene accepted as Erigeron compositus Pursh
- Species Erigeron gouanii L.
- Species Erigeron gouanii Jacq. accepted as Erigeron aegyptiacus L.
- Species Erigeron gracilis Rydb.
- Species Erigeron gracillimus Greene accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron graecus Vierh.
- Species Erigeron gramineum L. accepted as Arctogeron gramineum (L.) DC.
- Species Erigeron gramineus Falk accepted as Erigeron armerifolius Turcz. ex DC.
- Species Erigeron gramineus L. accepted as Arctogeron gramineum (L.) DC.
- Species Erigeron graminifolius Pall. ex Herder accepted as Arctogeron gramineum (L.) DC.
- Species Erigeron graminifolius Phil. accepted as Symphyotrichum vahlii (Gaudich.) G.L.Nesom
- Species Erigeron graminosus russ. ex DC. accepted as Blumea oxyodonta DC.
- Species Erigeron granatensis W.Lippert
- Species Erigeron grandiflorus Hook.
- Species Erigeron grandiflorus Sessé & Moc.
- Species Erigeron grandiflorus Hoppe ex DC. accepted as Erigeron pulchellus Michx.
- Species Erigeron grandiflorus Nutt. accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron grandiflorus Willd. ex Spreng. accepted as Erigeron pulchellus Michx.
- Species Erigeron grantii Oliv. & Hiern accepted as Felicia grantii (Oliv. & Hiern ex Oliv.) Grau
- Species Erigeron graveolens L. accepted as Dittrichia graveolens (L.) Greuter
- Species Erigeron grayi Wooton & Standl. accepted as Erigeron pulcherrimus A.Heller
- Species Erigeron grayi A.Heller accepted as Erigeron pulcherrimus A.Heller
- Species Erigeron greenei G.L.Nesom
- Species Erigeron griseus (Greenm.) G.L.Nesom
- Species Erigeron guatemalensis (S.F.Blake) G.L.Nesom
- Species Erigeron gulielmi Greene accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron gunnii (Hook.f.) F.Muell.
- Species Erigeron gunnii (Hook.f.) Hook.f. accepted as Erigeron pappocromus Labill.
- Species Erigeron gusalakensis Rech.f. & Edelb. accepted as Erigeron bonariensis L.
- Species Erigeron gypsophilus Beauverd
- Species Erigeron gypsophilus B.L.Turner accepted as Erigeron gypsoverus G.L.Nesom
- Species Erigeron gypsoverus G.L.Nesom
- Species Erigeron hartwegii Greene accepted as Erigeron foliosus var. hartwegii (Greene) Jeps.
- Species Erigeron hegetschweileri Brügger
- Species Erigeron helenae G.L.Nesom
- Species Erigeron heleniastrum Greene
- Species Erigeron heliographis G.L.Nesom
- Species Erigeron helveticus Brügger
- Species Erigeron hesperocallis Greene accepted as Erigeron peregrinus (Banks ex Pursh) Greene
- Species Erigeron hessii G.L.Nesom
- Species Erigeron heterochaeta (Benth. ex Benth.) Botsch.
- Species Erigeron heteromorphus B.L.Rob.
- Species Erigeron heterophyllus Kunth & C.D.Bouché
- Species Erigeron heterophyllus Muhl. ex Willd. accepted as Bellis annua L.
- Species Erigeron heterotrichus Hara accepted as Erigeron thunbergii var. heterotrichus (Hara) Hara
- Species Erigeron hieracifolia Poir. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron hieracifolium D.Don accepted as Blumea hieracifolia (D.Don) DC.
- Species Erigeron hieracifolius D.Don accepted as Blumea hieracifolia var. hieracifolia (D.Don) DC.
- Species Erigeron hieraciifolius D.Don
- Species Erigeron hieraciifolius Poir. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron hieracioides Wedd. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron higginsii S.L.Welsh accepted as Erigeron canaani S.L.Welsh
- Species Erigeron hillii Domke
- Species Erigeron himalajensis Vierh.
- Species Erigeron hintoniorum G.L.Nesom
- Species Erigeron hintoniorum B.L.Turner
- Species Erigeron hircianus Degen
- Species Erigeron hirsutum L.
- Species Erigeron hirsutus Lour.
- Species Erigeron hirsutus hoppe. ex DC.
- Species Erigeron hirsutus Wall.
- Species Erigeron hirsutus Pursh accepted as Erigeron pumilus Nutt.
- Species Erigeron hirsutus Bluff & Fingerh. accepted as Erigeron alpinus L.
- Species Erigeron hirtellus DC. accepted as Conyza andina J.Rémy
- Species Erigeron hirtopilosus Hieron. accepted as Oritrophium hirtopilosum (Hieron.) Cuatrec.
- Species Erigeron hirtuosus Greene accepted as Erigeron formosissimus Greene
- Species Erigeron hirtus Thunb. accepted as Conyza ulmifolia (Burm.f.) Kuntze
- Species Erigeron hispanicus (Vierh.) Maire
- Species Erigeron hispidissimus (Hook.) Piper accepted as Erigeron pumilus subsp. intermedius Cronquist
- Species Erigeron hispidus Baker
- Species Erigeron hispidus Vierh.
- Species Erigeron hispidus Pau ex Cad.
- Species Erigeron hispidus Nutt. accepted as Erigeron glaucus Ker Gawl.
- Species Erigeron hispidus DC. accepted as Erigeron sublyratus Roxb. ex DC.
- Species Erigeron hissaricus Botsch.
- Species Erigeron hochstetteri (Sch.Bip. ex A.Rich.) Sch.Bip. accepted as Erigeron gouanii L.
- Species Erigeron hochstetteri (Sch.Bip. ex A.Gray) Sch.Bip. ex Schweinf. accepted as Erigeron gouanii L.
- Species Erigeron hodgsoniae G.L.Nesom
- Species Erigeron howardii M.E.Jones accepted as Erigeron coronarius Greene
- Species Erigeron howellii (A.Gray) A.Gray
- Species Erigeron huachucanus Greene accepted as Erigeron arizonicus A.Gray
- Species Erigeron huberi S.L.Welsh & N.D.Atwood accepted as Erigeron radicatus Hook.
- Species Erigeron huelsenii Vatke accepted as ×Conyzigeron huelsenii (Vatke) Rauschert
- Species Erigeron hultenii Spongberg
- Species Erigeron humilis Graham
- Species Erigeron humilis Spreng. ex DC. accepted as Erigeron monticolus DC.
- Species Erigeron hungaricus (Vierh.) Pawł.
- Species Erigeron huteri Murr
- Species Erigeron hybridus Bergmans
- Species Erigeron hybridus Hieron. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron hyemalis Raf. accepted as Erigeron philadelphicus Michx.
- Species Erigeron hyoseroides Griseb.
- Species Erigeron hyperboreus Greene
- Species Erigeron hypoleucus (A.Rich.) Sch.Bip. accepted as Conyza hypoleuca A.Rich.
- Species Erigeron hypoleucus (A.Rich.) Sch.Bip. ex Schweinf. & Asch. accepted as Conyza hypoleuca A.Rich.
- Species Erigeron hypsophilus Phil.
- Species Erigeron hyrcanicus Bornm. & Vierh.
- Species Erigeron hyssopifolius Michx.
- Species Erigeron hyssopifolius Sch.Bip. accepted as Nidorella foetida (L.) DC.
- Species Erigeron ibari Phil. accepted as Erigeron myosotis Pers.
- Species Erigeron ibarii Phil.
- Species Erigeron illapelinus Phil.
- Species Erigeron imbricatus Vierh.
- Species Erigeron inamoenus A.Nelson accepted as Erigeron radicatus Hook.
- Species Erigeron incaicus Solbrig
- Species Erigeron incaicus (Solbrig) (Solbrig)
- Species Erigeron incanescens Rydb. accepted as Erigeron subtrinervis Rydb. ex Porter & Britton
- Species Erigeron incanum Vahl accepted as Conyza incana (Vahl) Willd.
- Species Erigeron incanus Vahl
- Species Erigeron incertus (d'Urv.) Skottsb.
- Species Erigeron incisum Thunb. accepted as Conyza ulmifolia (Burm.f.) Kuntze
- Species Erigeron incisus Thunb.
- Species Erigeron incisus Sieber ex DC. accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron incomptus A.Gray accepted as Erigeron divergens Torr. & A.Gray
- Species Erigeron inconspicuus MacMill. accepted as Erigeron asperugineus (D.C.Eaton) A.Gray
- Species Erigeron indicus Burm.f.
- Species Erigeron ingae Skottsb.
- Species Erigeron inoptatus A.Gray
- Species Erigeron inornatus (A.Gray) A.Gray
- Species Erigeron integrifolius Bigelow
- Species Erigeron integrifolius Bertol. accepted as Erigeron vernus (L.) Torr. & A.Gray
- Species Erigeron intermedius trachs. ex Dalla Torre accepted as Erigeron trachselii Dalla Torre
- Species Erigeron intermedius Rchb. accepted as Erigeron alpinus subsp. intermedius (Rchb.) Pawł.
- Species Erigeron intermedius Nyman accepted as Erigeron atticus Vill.
- Species Erigeron inuloides Poir. accepted as Pulicaria inuloides (Poir.) DC.
- Species Erigeron involucratus Link ex Sweet
- Species Erigeron involutus
- Species Erigeron iodanthus Greene accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron irazuense Greenm.
- Species Erigeron irazuensis Greenm.
- Species Erigeron ivifolius (L.) Sch.Bip.
- Species Erigeron jacinteus Hall
- Species Erigeron jacinteus H.M.Hall accepted as Erigeron breweri var. jacinteus (H.M.Hall) Cronquist
- Species Erigeron jaeschkei Vierh.
- Species Erigeron jamaicensis L.
- Species Erigeron janivultus G.L.Nesom
- Species Erigeron japonicus Thunb. accepted as Conyza japonica (Thunb.) Less. ex Less.
- Species Erigeron javanicus Sch.Bip.
- Species Erigeron javanicus Sch.Bip. ex Miq.
- Species Erigeron jenkinsii G.L.Nesom
- Species Erigeron jonesii Cronquist
- Species Erigeron jucundus Greene accepted as Erigeron nivalis Nutt.
- Species Erigeron jussievi Spreng. accepted as Psiadia melastomatoides (Lam.) A.J.Scott
- Species Erigeron kachinensis S.L.Welsh & Gl.Moore
- Species Erigeron kamtschaticus DC. accepted as Erigeron acris var. kamtschaticus (DC.) Herder
- Species Erigeron karatavicus Pavlov accepted as Psychrogeton alexeenkoi Krasch.
- Species Erigeron karvinskianus DC.
- Species Erigeron katiae S.L.Welsh & N.D.Atwood
- Species Erigeron kazachstanicus Serg. accepted as Psychrogeton nigromontanus (Boiss. & Buhse) Grierson
- Species Erigeron keredjensis Bornm. & Gauba accepted as Chamaegeron keredjensis (Bornm. & Gauba) Grierson
- Species Erigeron kermanensis Rech.f. accepted as Psychrogeton alexeenkoi Krasch.
- Species Erigeron khorassanicus Boiss.
- Species Erigeron kindbergii Greene accepted as Erigeron lonchophyllus Hook.
- Species Erigeron kiukiangensis
- Species Erigeron klamathensis (G.L.Nesom) G.L.Nesom
- Species Erigeron klossii S.Moore
- Species Erigeron koelzianus Rech.f. accepted as Psychrogeton cabulicus Boiss.
- Species Erigeron koidzumii Honda accepted as Erigeron acer var. linearifolius (Koidz.) Kitam.
- Species Erigeron komarovii Botsch.
- Species Erigeron kopetdaghensis Popov
- Species Erigeron koraginensis (Kom.) Botsch. accepted as Erigeron komarovii Botsch.
- Species Erigeron korotkyi Novopokr. accepted as Erigeron eriocalyx (Ledeb.) Vierh.
- Species Erigeron kotschyi Boiss. accepted as Erigeron khorassanicus Boiss.
- Species Erigeron kraussii Sch.Bip. ex Walp. accepted as Nidorella auriculata DC.
- Species Erigeron krylovii Serg.
- Species Erigeron kumaunensis (Vierh.) Wendelbo
- Species Erigeron kunshanensis
- Species Erigeron kuschei Eastw.
- Species Erigeron lacarensis Phil. accepted as Erigeron myosotis Pers.
- Species Erigeron lachnocephalus Botsch.
- Species Erigeron lackschewitzii G.L.Nesom & W.A.Weber
- Species Erigeron laetevirens Rydb. accepted as Erigeron ochroleucus Nutt.
- Species Erigeron laevigatus Rich. accepted as Conyza laevigata (Rich.) Pruski
- Species Erigeron lalehzaricus (Rech.f.) Šída
- Species Erigeron lanatus Hook.
- Species Erigeron lanceolatus Wedd.
- Species Erigeron lancifolius Hook.f. accepted as Darwiniothamnus lancifolius (Hook.f.) Harling
- Species Erigeron landbeckii Phil.
- Species Erigeron lanuginosus Y.L.Chen
- Species Erigeron lapiluteus A.Nelson accepted as Erigeron acris var. kamtschaticus (DC.) Herder
- Species Erigeron larrainianus (J.Rémy) Cabrera accepted as Conyza larrainiana J.Rémy
- Species Erigeron lassenianus Greene
- Species Erigeron latifolius Hao Zhang & Zhi F.Zhang
- Species Erigeron latisquamatus Maxim. accepted as Aster latisquamatus (Maxim.) Hand.-Mazz.
- Species Erigeron latisquamus Boiss. accepted as Rhinactinidia popovii (Botsch.) Botsch.
- Species Erigeron latus (A.Nelson & J.F.Macbr.) Cronquist
- Species Erigeron lavandulaceus Greene accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron laxiflorus Baker
- Species Erigeron lechleri Sch.Bip.
- Species Erigeron lehmannii Spreng.
- Species Erigeron lehmannii Hieron. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron lehmannii Boiss. accepted as Psychrogeton pseudoerigeron (Bunge) Novopokr. ex Nevski
- Species Erigeron leibergii Piper
- Species Erigeron leiolepis Solbrig
- Species Erigeron leiomerus A.Gray
- Species Erigeron leiophyllus Greene accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron leioreades Popov
- Species Erigeron lemmonii A.Gray
- Species Erigeron lepidopodus (B.L.Rob. & Fernald) G.L.Nesom
- Species Erigeron lepidotus Less.
- Species Erigeron leptocladus Rech.f.
- Species Erigeron leptopetalus Phil.
- Species Erigeron leptophyllus Greene
- Species Erigeron leptorhizon DC.
- Species Erigeron leschenaultii DC. accepted as Erigeron pulchellus Michx.
- Species Erigeron leucanthemifolius S.Schauer
- Species Erigeron leucanthemoides Greene accepted as Erigeron coulteri Porter
- Species Erigeron leucanthus D.Don accepted as Conyza leucantha (D.Don) Ludlow & P.H.Raven
- Species Erigeron leucoglossus
- Species Erigeron leucophyllus (Sch.Bip. ex A.Rich.) Schweinf. accepted as Conyza incana (Vahl) Willd.
- Species Erigeron leucophyllus (Bunge) Boiss. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron leucotrichus Rydb. accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron liatroides Turcz. accepted as Streptoglossa liatroides (Turcz.) Dunlop
- Species Erigeron libanensis Urb.
- Species Erigeron libanoticus Vierh.
- Species Erigeron limnophilus Sch.Bip. accepted as Oritrophium limnophilum (Sch.Bip.) Cuatrec.
- Species Erigeron linearifolius Cav. accepted as Erigeron bonariensis L.
- Species Erigeron linearis (Hook.) Piper
- Species Erigeron linearis Spreng. ex DC. accepted as Pentanema indicum (L.)
- Species Erigeron lineatus Sessé & Moc.
- Species Erigeron linifolius Willd. accepted as Erigeron bonariensis L.
- Species Erigeron linifolius Bertero ex DC. accepted as Aster subulatus Michx.
- Species Erigeron linosyris [Clairv.]
- Species Erigeron linosyris Clairv. accepted as Galatella linosyris (L.) Rchb.f.
- Species Erigeron litoralis (Phil.) Skottsb. accepted as Erigeron fasciculatus Colla
- Species Erigeron lobatus A.Nelson
- Species Erigeron lonchophyllus Hook.
- Species Erigeron longifolius Baill. accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron longifolius Brouss. ex Webb & Berthel. accepted as Erigeron gouanii L.
- Species Erigeron longifolius Desf. accepted as Jasonia longifolia Cass.
- Species Erigeron longipes DC.
- Species Erigeron looseri Herter accepted as Erigeron bonariensis L.
- Species Erigeron loratus Greene accepted as Erigeron glacialis var. glacialis
- Species Erigeron lorentzii (Griseb.) Cabrera accepted as Conyza lorentzii Griseb.
- Species Erigeron loxensis Hieron. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron lucidus Greene accepted as Erigeron coulteri Porter
- Species Erigeron lumbricoides Gilli accepted as Psychrogeton lumbricoides (Gilli) Grierson
- Species Erigeron luteoviridis Skottsb.
- Species Erigeron luteus A.Nelson accepted as Erigeron linearis (Hook.) Piper
- Species Erigeron luxurians (Skottsb.) Solbrig
- Species Erigeron lyratum (Kunth) Gomez accepted as Blumea viscosa (Mill.) V.M.Badillo
- Species Erigeron lyratus Raf.
- Species Erigeron lyratus (Kunth) M.Gómez accepted as Blumea viscosa (Mill.) V.M.Badillo
- Species Erigeron macdonaldii G.L.Nesom
- Species Erigeron macdougalii A.Heller accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron macer (F.Muell.) Boerl. accepted as Vittadinia macra F.Muell.
- Species Erigeron machucana G.L.Nesom
- Species Erigeron macounii Greene accepted as Erigeron radicatus Hook.
- Species Erigeron macranthus Nutt. accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron macrophyllus (Spreng.) Herter
- Species Erigeron macrophyllus Herbich accepted as Erigeron acris subsp. droebachiensis (O.F.Müll.) Arcang.
- Species Erigeron macrorrhizus (Sch.Bip. ex A.Rich.) Sch.Bip. ex Schweinf. accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron macrorrhizus (Sch.Bip. ex A.Rich.) Sch.Bip. accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron maguirei Cronquist
- Species Erigeron mairei H.Lév.
- Species Erigeron mairei Braun-Blanq. accepted as Erigeron granatensis W.Lippert
- Species Erigeron major (Boiss.) Vierh.
- Species Erigeron mancus Rydb.
- Species Erigeron mandonii Sch.Bip.
- Species Erigeron maniopotamicus G.L.Nesom & T.W.Nelson
- Species Erigeron manshuricus (Kom.) Vorosch.
- Species Erigeron manshuricus (Kom.) Vorosch.
- Species Erigeron mariposanus Congdon
- Species Erigeron maritimus Nutt. accepted as Erigeron glaucus Ker Gawl.
- Species Erigeron mashadansis Parsa & Maleki
- Species Erigeron matsudae Koidz.
- Species Erigeron matthiolifolius Parsa accepted as Erigeron acer subsp. asadbarensis (Vierh.) Rech.f.
- Species Erigeron maximus (D.Don) Otto ex DC. accepted as Leptostelma maximum D.Don
- Species Erigeron maxonii S.F.Blake
- Species Erigeron maxonii (S.F.Blake) (S.F.Blake)
- Species Erigeron mayoensis G.L.Nesom
- Species Erigeron mayoensis Nespiak
- Species Erigeron melanocephalus (A.Nelson) A.Nelson
- Species Erigeron membranaceus Greene accepted as Erigeron peregrinus (Banks ex Pursh) Greene
- Species Erigeron mendocinensis D.J.Keil
- Species Erigeron mendocinus Greene accepted as Erigeron foliosus var. mendocinus (Greene) G.L.Nesom
- Species Erigeron mesatlanticus Maire accepted as Erigeron acris subsp. mesatlanticus (Maire) Maire
- Species Erigeron mespilifolius Sch.Bip. ex Walp. accepted as Microglossa mespilifolia (Less.) B.L.Rob.
- Species Erigeron metrius S.F.Blake
- Species Erigeron mexiae K.M.Becker accepted as Erigeron denalii A.Nelson
- Species Erigeron mexicanus Sessé & Moc.
- Species Erigeron mexicanus Sessé & Moc.
- Species Erigeron meyeri Cabrera accepted as Leptostelma meyeri (Cabrera) A.M.Teles
- Species Erigeron microcephalus Sch.Bip.
- Species Erigeron microcephalus Gand.
- Species Erigeron microglossus S.F.Blake accepted as Laennecia microglossa (S.F.Blake) G.L.Nesom
- Species Erigeron microlonchus Greene accepted as Erigeron eatonii A.Gray
- Species Erigeron microspermus Sch.Bip.
- Species Erigeron mihianus S.F.Blake
- Species Erigeron mildbraedii Muschl. accepted as Conyza limosa O.Hoffm.
- Species Erigeron mimegletes Shinners
- Species Erigeron mimus (S.F.Blake) G.L.Nesom
- Species Erigeron minjanensis Rech.f. accepted as Psychrogeton andryaloides var. poncinsii (Franch.) Grierson
- Species Erigeron minor (Hook.) Rydb. accepted as Erigeron lonchophyllus Hook.
- Species Erigeron minurioides Benth.
- Species Erigeron minusculus Cuatrec.
- Species Erigeron minusculus Greene
- Species Erigeron mirus (A.Nelson) (A.Nelson)
- Species Erigeron mirus Auct. accepted as Erigeron leiomerus A.Gray
- Species Erigeron miser A.Gray
- Species Erigeron mixtus Sennen
- Species Erigeron mixtus Arv.-Touv.
- Species Erigeron miyabeanus (Tatew. & Kitam.) Tatew. & Kitam. ex Tatew. & Kita
- Species Erigeron miyabeanus (Tatew. & Kitam.) Tatew. & Kitam. ex H.Hara
- Species Erigeron miyagii (Koidz.) Honda accepted as Aster miyagii Koidz.
- Species Erigeron modestus A.Gray
- Species Erigeron moelleri Phil.
- Species Erigeron mogollonicus Greene accepted as Erigeron formosissimus Greene
- Species Erigeron mohinorensis G.L.Nesom
- Species Erigeron molleri Phil.
- Species Erigeron mollis DC. accepted as Blumea mollis (D.Don) Merr.
- Species Erigeron mollis D.Don accepted as Blumea mollis (D.Don) Merr.
- Species Erigeron mollissimus Rech.f. & Köie accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron monocephalus Schur accepted as Erigeron pulchellus Michx.
- Species Erigeron monorchis Griseb. accepted as Conyza monorchis (Griseb.) Cabrera
- Species Erigeron montanensis Rydb. accepted as Erigeron ochroleucus Nutt.
- Species Erigeron montenegrinus Vierh.
- Species Erigeron montevidensis Spreng. accepted as Neja filiformis (Spreng.) Nees
- Species Erigeron montevidensis Baker accepted as Erigeron blakei Cabrera
- Species Erigeron monticola Wall.
- Species Erigeron monticolus DC.
- Species Erigeron morelensis Greenm.
- Species Erigeron morrisonensis Hayata
- Species Erigeron moupinensis Franch.
- Species Erigeron mucronatus DC. accepted as Erigeron karvinskianus DC.
- Species Erigeron muelleri Lund ex Nyman accepted as Erigeron acer L.
- Species Erigeron muirii A.Gray
- Species Erigeron multicaulis Wall.
- Species Erigeron multicaulis Wall. ex DC. accepted as Erigeron acer var. multicaulis (Wall. ex DC.) C.B.Clarke
- Species Erigeron multiceps Greene
- Species Erigeron multicolor Lunell accepted as Erigeron glabellus Nutt.
- Species Erigeron multifidus Rydb. accepted as Erigeron compositus Pursh
- Species Erigeron multiflorus Hook. & Arn. accepted as Symphyotrichum subulatum var. parviflorum (Nees) S.D.Sundb.
- Species Erigeron multifolius Hand.-Mazz.
- Species Erigeron multiradiatus (Lindl. ex DC.) Benth. & Hook.f.
- Species Erigeron muralis Lapeyr. accepted as Erigeron acris subsp. serotinus (Weihe) Greuter
- Species Erigeron musashensis Makino accepted as Erigeron sumatrensis Retz.
- Species Erigeron myosotis Pers.
- Species Erigeron myosotis J.Rémy accepted as Inula ciliaris (Miq.) Maxim.
- Species Erigeron myosotoides Juss. ex Pers. accepted as Erigeron myosotis Pers.
- Species Erigeron myriocephalus Rech.f. & Edelb. accepted as Erigeron canadensis L.
- Species Erigeron myriocephalus (J.Rémy) Herter accepted as Erigeron floribundus (Kunth) Sch.Bip.
- Species Erigeron myrionactis Small accepted as Erigeron procumbens (Houst. ex Mill.) G.L.Nesom
- Species Erigeron nabidshonii Kamelin accepted as Psychrogeton nabidshonii (Kamelin) Kochk. & Zhogoleva
- Species Erigeron nacoriensis G.L.Nesom
- Species Erigeron nannogeron Rech.f.
- Species Erigeron nanus Nutt.
- Species Erigeron nanus Schur accepted as Erigeron hungaricus (Vierh.) Pawł.
- Species Erigeron nanus Sch.Bip. ex Schweinf. & Asch. accepted as Conyza nana Sch.Bip. ex Oliv. & Hiern
- Species Erigeron narcissus G.L.Nesom
- Species Erigeron natalensis Sch.Bip. accepted as Microglossa mespilifolia (Less.) B.L.Rob.
- Species Erigeron natalensis Sch.Bip. ex Walp. accepted as Microglossa mespilifolia (Less.) B.L.Rob.
- Species Erigeron naudinii (Bonnet) Humbert accepted as Erigeron sumatrensis Retz.
- Species Erigeron naudinii (Bonnet) Bonnier accepted as Erigeron sumatrensis Retz.
- Species Erigeron naudinii (Bonnet) P.Fourn. accepted as Erigeron sumatrensis Retz.
- Species Erigeron nauseosus (M.E.Jones) A.Nelson
- Species Erigeron neglectus A.Kern.
- Species Erigeron neglectus Kern. ex Nyman
- Species Erigeron nelsonii Greene accepted as Erigeron acris L.
- Species Erigeron nematophyllus Rydb.
- Species Erigeron nemophilus Greene accepted as Erigeron aliceae Howell
- Species Erigeron nemorale Phil.
- Species Erigeron nemoralis Phil.
- Species Erigeron neocaledonicus S.Moore
- Species Erigeron neomexicanus A.Gray
- Species Erigeron nervosus Willd. accepted as Pityopsis graminifolia var. latifolia (Fernald) Semple & F.D.Bowers
- Species Erigeron nevadensis Sennen
- Species Erigeron nevadensis Wedd. accepted as Oritrophium nevadense (Wedd.) Cuatrec.
- Species Erigeron nevadensis A.Gray accepted as Erigeron eatonii var. nevadincola (S.F.Blake) G.L.Nesom
- Species Erigeron nevadincola S.F.Blake accepted as Erigeron eatonii var. nevadincola (S.F.Blake) G.L.Nesom
- Species Erigeron nigrimontanus Popov
- Species Erigeron nigromontanus Boiss. & Buhse accepted as Psychrogeton nigromontanus (Boiss. & Buhse) Grierson
- Species Erigeron nitens G.L.Nesom
- Species Erigeron nitidus S.J.Forbes
- Species Erigeron nivalis Nutt.
- Species Erigeron nivalis Boiss. accepted as Psychrogeton chionophilus (Boiss.) Krasch.
- Species Erigeron niveus Sch.Bip. accepted as Laennecia gnaphalioides (Kunth) Cass.
- Species Erigeron notobellidiastrum (Griseb.) S.F.Blake accepted as Exostigma notobellidiastrum (Griseb.) Sancho
- Species Erigeron novae-zealandiae Buchanan accepted as Celmisia novae-zealandiae (Buchanan) Cheeseman
- Species Erigeron nubgenus Phil.
- Species Erigeron nubigenus Phil. accepted as Erigeron leptopetalus Phil.
- Species Erigeron nudatus A.Gray accepted as Erigeron bloomeri var. nudatus (A.Gray) Cronquist
- Species Erigeron nudicaulis Michx. accepted as Erigeron vernus (L.) Torr. & A.Gray
- Species Erigeron nudiflorus Buckley
- Species Erigeron nudiscapus Sch.Bip. accepted as Inulopsis camporum (Gardner) G.L.Nesom
- Species Erigeron nuttallii A.Heller accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron oaxacanus Greenm.
- Species Erigeron oblanceolatus Rydb. accepted as Erigeron glabellus var. glabellus Nutt.
- Species Erigeron obliquus L. accepted as Blumea obliqua (L.) Druce
- Species Erigeron obovatus Spreng. ex DC. accepted as Blumeopsis flava (DC.) Gagnep.
- Species Erigeron obovatus (Benth.) Boiss. accepted as Psychrogeton obovatus (Benth.) Grierson
- Species Erigeron obscurus Lunell
- Species Erigeron obtusatus Greene
- Species Erigeron obtusus (Kunth) M.Gómez
- Species Erigeron occidentalis Vierh.
- Species Erigeron occidentalis Nutt.
- Species Erigeron ochroleucus Nutt.
- Species Erigeron ochroleucus D.C.Eaton accepted as Erigeron eatonii A.Gray
- Species Erigeron ocoensis Urb. & Ekman
- Species Erigeron oharae (Nakai) Botsch. accepted as Aster spathulifolius Maxim.
- Species Erigeron olgae Regel & Schmalh. accepted as Psychrogeton olgae Novopokr. ex Nevski
- Species Erigeron oligocephalus (Schrenk) B.Fedtsch. accepted as Chamaegeron oligocephalus Schrenk
- Species Erigeron oligodontus Lunell accepted as Erigeron glabellus var. pubescens Hook.
- Species Erigeron olympicus Schott & Kotschy
- Species Erigeron onofrensis G.L.Nesom
- Species Erigeron oolepis Sch.Bip.
- Species Erigeron oreades (Schrenk) Fisch. & C.A.Mey.
- Species Erigeron oreganus A.Gray
- Species Erigeron oreophilus Ridl.
- Species Erigeron oreophilus Greenm.
- Species Erigeron orientalis Boiss. accepted as Erigeron acris L.
- Species Erigeron orithales Phil.
- Species Erigeron orizabensis Sch.Bip. ex Klatt accepted as Erigeron veracruzensis G.L.Nesom
- Species Erigeron ortegae S.F.Blake accepted as Chloracantha ortegae (Blake) G.L. Nesom
- Species Erigeron othonnifolius Hook. & Arn.
- Species Erigeron ovinus Cronquist
- Species Erigeron oxyodontus Lunell
- Species Erigeron oxyphyllus Greene
- Species Erigeron pacalis Björk
- Species Erigeron pacayensis Greenm. accepted as Erigeron karvinskianus DC.
- Species Erigeron pachyrhizus Greene accepted as Erigeron cascadensis A.Heller
- Species Erigeron pacificus Howell accepted as Erigeron eatonii var. lavandulus Strother & Ferlatte
- Species Erigeron paghmanicus Rech.f. accepted as Psychrogeton andryaloides var. poncinsii (Franch.) Grierson
- Species Erigeron palezieuxi Beauverd
- Species Erigeron palezieuxii Beauverd
- Species Erigeron pallens Cronquist
- Species Erigeron pallidus Popov
- Species Erigeron palmeri A.Gray
- Species Erigeron paludicola S.J.Forbes
- Species Erigeron palustre Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron palustris Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron pamiricus Botsch. & Kochk.
- Species Erigeron pampeanus Parodi accepted as Conyza pampeana (Parodi) Cabrera
- Species Erigeron panduratus C.C.Chang
- Species Erigeron panduratus Chang
- Species Erigeron paniculatus Meig. & Wenig. accepted as Erigeron acer L.
- Species Erigeron paniculatus Lam. accepted as Erigeron canadensis Brot.
- Species Erigeron paolii Gamisans
- Species Erigeron paposanus Phil.
- Species Erigeron pappocromus Labill.
- Species Erigeron paradoxus Brügger
- Species Erigeron paramensis Aristeg. & Cuatrec. accepted as Oritrophium paramense (Aristeg. & Cuatrec.) Aristeg.
- Species Erigeron parishii A.Gray
- Species Erigeron parryi Canby & Rose
- Species Erigeron parviflorus Brügger
- Species Erigeron patagonicus Phil.
- Species Erigeron patens Greene accepted as Erigeron vreelandii Rydb.
- Species Erigeron patentisquama Jeffrey accepted as Erigeron pulchellus Michx.
- Species Erigeron pattersonii G.L.Nesom
- Species Erigeron pauciflorus Less. accepted as Exostigma notobellidiastrum (Griseb.) Sancho
- Species Erigeron pauciflorus Hook. & Arn. accepted as Vittadinia chamissonis A.Gray
- Species Erigeron paucifolius Less. ex Baker accepted as Exostigma notobellidiastrum (Griseb.) Sancho
- Species Erigeron paucilobus Urb.
- Species Erigeron paucipetalus Osterh.
- Species Erigeron paulae Beauverd
- Species Erigeron pauper Benoist
- Species Erigeron pazensis Sch.Bip. ex Rusby
- Species Erigeron pazensis Sch.Bip.
- Species Erigeron pazensis Sch.Bip. accepted as Erigeron pazensis Sch.Bip. ex Rusby
- Species Erigeron peasei Rydb. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron pecosensis Standl. accepted as Erigeron formosissimus var. formosissimus Greene
- Species Erigeron pectinatus Sch.Bip.
- Species Erigeron pectinatus Sch.Bip. ex Schweinf.
- Species Erigeron pedatus Nutt. accepted as Erigeron compositus Pursh
- Species Erigeron pellitus Hieron. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron pellitus (Kunth) Wedd. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron peregrinus (Banks ex Pursh) Greene
- Species Erigeron perennis (L.) Sessé & Moc. accepted as Bellis perennis L.
- Species Erigeron perglaber S.F.Blake accepted as Erigeron concinnus var. subglaber (Cronquist) G.L.Nesom
- Species Erigeron perramosus Schur
- Species Erigeron persicariifolius Benth. accepted as Conyza attenuata DC.
- Species Erigeron persicifolius Benth. accepted as Conyza attenuata DC.
- Species Erigeron persicus Boiss. accepted as Psychrogeton persicus (Boiss.) Grierson
- Species Erigeron peruvianus (Lam.) Cuatrec. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron petiolaris Vierh.
- Species Erigeron petiolaris Greene
- Species Erigeron petrocallis Greene accepted as Erigeron breweri var. porphyreticus (M.E.Jones) Cronquist
- Species Erigeron petroiketes Rech.f.
- Species Erigeron petrophilus Greene
- Species Erigeron peucephyllus A.Gray accepted as Erigeron linearis (Hook.) Piper
- Species Erigeron philadelphicus L.
- Species Erigeron philadelphicus Bart.
- Species Erigeron philadelphicus Willd.
- Species Erigeron philadelphicus Lour. accepted as Blumea aromatica DC.
- Species Erigeron philadelphicus Michx. accepted as Erigeron quercifolius Pursh
- Species Erigeron philippi Sch.Bip. accepted as Erigeron myosotis Pers.
- Species Erigeron philippii Sch.Bip. ex Wedd. accepted as Erigeron myosotis Pers.
- Species Erigeron phlogotrichus Spreng.
- Species Erigeron phoenicodontus S.F.Blake accepted as Erigeron canus A.Gray
- Species Erigeron piloso-villosus S.Moore
- Species Erigeron pilosus Pers.
- Species Erigeron pilosus Wall. accepted as Chrysopsis gossypina (Michx.) Elliott
- Species Erigeron pilosus Walter accepted as Chrysopsis gossypina subsp. gossypina (Michx.) Elliot
- Species Erigeron pinetorum Urb. accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron pinifolius Poir. accepted as Neja pinifolia (Poir.) G.L.Nesom
- Species Erigeron pinkavii B.L.Turner
- Species Erigeron pinnatifidum Thunb. accepted as Conyza pinnatifida (Thunb.) Less.
- Species Erigeron pinnatifidus Thunb.
- Species Erigeron pinnatifidus D.Don accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron pinnatisectus (A.Gray) A.Nelson
- Species Erigeron pinnatus Turcz. accepted as Conyza cardaminifolia Kunth
- Species Erigeron pinnatus L.f. accepted as Conyza pinnata (L.f.) Kuntze
- Species Erigeron piperianus Cronquist
- Species Erigeron piscaticus G.L.Nesom
- Species Erigeron pisonis Burm.f.
- Species Erigeron plantagineus Greene accepted as Erigeron eatonii var. plantagineus (Greene) Cronquist
- Species Erigeron plateauensis Cronquist accepted as Erigeron modestus A.Gray
- Species Erigeron platensis Speg. accepted as Conyza serrana Cabrera
- Species Erigeron platylepis Vierh. accepted as Erigeron myosotis Pers.
- Species Erigeron platyphyllus Greene
- Species Erigeron plesiogeron Rech.f.
- Species Erigeron plurifolius Botsch. accepted as Erigeron eriocephalus J.Vahl
- Species Erigeron podolicus Besser accepted as Erigeron acris subsp. podolicus (Besser) Nyman
- Species Erigeron podophyllus G.L.Nesom
- Species Erigeron poeppigii DC. accepted as Erigeron cinereus Hook. & Arn.
- Species Erigeron poliospermus A.Gray
- Species Erigeron politus Fr. accepted as Erigeron acris subsp. politus (Fr.) H.Lindb.
- Species Erigeron polyadenus Rech.f. & Köie accepted as Psychrogeton alexeenkoi Krasch.
- Species Erigeron polycephalus (Larsen) G.L.Nesom
- Species Erigeron polycladus Urb.
- Species Erigeron polymorphus Scop. accepted as Erigeron uniflorus L.
- Species Erigeron polyphyllus Phil. accepted as Erigeron myosotis Pers.
- Species Erigeron poncinsii (Franch.) Botsch.
- Species Erigeron popayanensis Hieron. accepted as Conyza popayanensis (Hieron.) Pruski
- Species Erigeron popovii Botsch.
- Species Erigeron porphyreticus M.E.Jones accepted as Erigeron breweri var. porphyreticus (M.E.Jones) Cronquist
- Species Erigeron porphyrolepis
- Species Erigeron porsildii G.L.Nesom & D.F.Murray
- Species Erigeron porteri S.F.Blake accepted as Erigeron vetensis Rydb.
- Species Erigeron potosinus Standl.
- Species Erigeron pou-orfilae Herter
- Species Erigeron praecox Beauverd
- Species Erigeron praecox Vierh. & Hand.-Mazz. accepted as Erigeron breviscapus (Vaniot) Hand.-Mazz.
- Species Erigeron prantlii Dalla Torre accepted as Erigeron alpinus L.
- Species Erigeron pratensis Phil. accepted as Erigeron gilliesii (Hook. & Arn.) Cabrera
- Species Erigeron primulaefolius jussieu
- Species Erigeron primulifolia Juss. ex Cass. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron primulifolium (Lam.) Greuter
- Species Erigeron primulifolius (Lam.) Greuter accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron primulifolius Juss. ex Cass. accepted as Podocoma hieraciifolia (Poir.) Cass.
- Species Erigeron primuloides Popov accepted as Erigeron poncinsii (Franch.) Botsch.
- Species Erigeron pringlei A.Gray
- Species Erigeron procerus Lunell
- Species Erigeron procumbens (Houst. ex Mill.) G.L.Nesom
- Species Erigeron proselyticus A.Nelson
- Species Erigeron proselyticus G.L.Nesom accepted as Erigeron sionis var. trilobatus (Maguire ex Cronquist) S.L.Welsh
- Species Erigeron provancheri Vict. & J.Rousseau accepted as Erigeron philadelphicus var. provancheri (Vict. & Rouss.) B.Boivin
- Species Erigeron pseud (Bunge) Popov
- Species Erigeron pseuderigeron Popov
- Species Erigeron pseuderigeron (Bunge) Popov ex Novopokr. accepted as Psychrogeton pseudoerigeron (Bunge) Novopokr. ex Nevski
- Species Erigeron pseuderiocephalus Popov
- Species Erigeron pseudoacris Schur accepted as Erigeron acer L.
- Species Erigeron pseudoannuus Makino
- Species Erigeron pseudocrispus Pierrot accepted as Conyza mixta Fouc. & Neyr.
- Species Erigeron pseudoelongatus Rouy
- Species Erigeron pseudoelongatus A.W.Hill
- Species Erigeron pseudoelongatus Rouy
- Species Erigeron pseudoelongatus Botsch. accepted as Erigeron acris subsp. botschantzevii Greuter
- Species Erigeron pseudoeriocephalus M.Pop.
- Species Erigeron pseudohyrcanicus Grierson ex R.R.Stewart
- Species Erigeron pseudoneglectus Popov accepted as Erigeron petiolaris Vierh.
- Species Erigeron pseudoseravschanicus Botsch.
- Species Erigeron psilocaulis Urb.
- Species Erigeron psychrogeton Popov accepted as Psychrogeton turkestanicus O.Hoffm. ex Paulsen
- Species Erigeron pubescens Kunth
- Species Erigeron pugae Phil. accepted as Symphyotrichum vahlii (Gaudich.) G.L.Nesom
- Species Erigeron pulchellus Michx.
- Species Erigeron pulchellus Hook.
- Species Erigeron pulchellus Turcz. accepted as Erigeron pulchellus Michx.
- Species Erigeron pulchellus (Willd.) DC. accepted as Erigeron caucasicus subsp. venustus (Botsch.) Grierson
- Species Erigeron pulcher Phil.
- Species Erigeron pulcherrimus A.Heller
- Species Erigeron pulvinatus Rydb. accepted as Erigeron compactus S.F.Blake
- Species Erigeron pulvinatus Wedd. accepted as Erigeron rosulatus Wedd.
- Species Erigeron pumilus Nutt.
- Species Erigeron pumilus Hook.
- Species Erigeron punjabensis T.Akhtar & Chaudhri
- Species Erigeron purisimanus Millsp.
- Species Erigeron purpurascens
- Species Erigeron purpuratus Greene
- Species Erigeron purpureus Ait.
- Species Erigeron purpureus Aiton accepted as Erigeron philadelphicus var. philadelphicus L.
- Species Erigeron purpuripes Britton & P.Wilson ex Britton
- Species Erigeron purpuripes Britton & P.Wilson accepted as Erigeron bellidiastroides Griseb.
- Species Erigeron pusillus Nutt. accepted as Erigeron canadensis L.
- Species Erigeron pusillus Lehm. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron pycnotrichus Schott & Kotschy ex Tchich. accepted as Erigeron pulchellus Michx.
- Species Erigeron pygmaeus (A.Gray) Greene
- Species Erigeron pyrami Botsch. accepted as Brachyactis pubescens (DC.) Aitch. & C.B.Clarke
- Species Erigeron pyramidatus Sch.Bip.
- Species Erigeron pyrenaicus (Desf. ex DC.) Rouy accepted as Erigeron alpinus L.
- Species Erigeron pyrenaicus (Pourr.) A.W.Hill accepted as Erigeron alpinus L.
- Species Erigeron pyrifolius (Lam.) Benth. accepted as Microglossa pyrifolia (Lam.) Kuntze
- Species Erigeron pyrrhopappus (Sch.Bip. ex A.Rich.) Sch.Bip. ex Schweinf. accepted as Conyza pyrrhopappa Sch.Bip. ex A.Rich.
- Species Erigeron pyrrhopappus (Sch.Bip. ex A.Rich.) Sch.Bip. accepted as Conyza pyrrhopappa Sch.Bip. ex A.Rich.
- Species Erigeron quattuordomuum Molinari
- Species Erigeron queraltii Sennen
- Species Erigeron quercifolius Lam.
- Species Erigeron quercifolius DC. accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron quercifolius Pursh accepted as Erigeron philadelphicus Michx.
- Species Erigeron quiexobrensis G.L.Nesom
- Species Erigeron racemosus Nutt. accepted as Erigeron lonchophyllus Hook.
- Species Erigeron raddeanus Vierh.
- Species Erigeron radicatus Hook.
- Species Erigeron radiosus Spreng. ex DC. accepted as Erigeron multiradiatus (Lindl. ex DC.) Benth. & Hook.f.
- Species Erigeron ramosus Raf. accepted as Erigeron divergens Torr. & A.Gray
- Species Erigeron ramosus (Walter) Britton, Sterns & Poggenb. accepted as Erigeron strigosus var. strigosus Muhl. ex Willd.
- Species Erigeron ramulosus Gand.
- Species Erigeron rapensis F.Br. accepted as Pacifigeron rapensis (F.Br.) G.L.Nesom
- Species Erigeron raphaelis Cuatrec.
- Species Erigeron re Colla
- Species Erigeron reconditus G.L. Nesom
- Species Erigeron reductus (Cronquist) G.L.Nesom
- Species Erigeron regalis Greene accepted as Erigeron peregrinus (Banks ex Pursh) Greene
- Species Erigeron regnellii Sch.Bip. accepted as Symphyotrichum regnellii (Baker) G.L.Nesom
- Species Erigeron reinanus G.L.Nesom
- Species Erigeron religiosus Cronquist
- Species Erigeron remyanus Speg.
- Species Erigeron remyanus Wedd. accepted as Erigeron gilliesii (Hook. & Arn.) Cabrera
- Species Erigeron remyi (A.Gray) Drake accepted as Vittadinia remyi A.Gray
- Species Erigeron repens (Kunth) Wedd. accepted as Oritrophium repens (Kunth) Cuatrec.
- Species Erigeron repens A.Gray accepted as Erigeron procumbens (Houst. ex Mill.) G.L.Nesom
- Species Erigeron resinosus Spreng. accepted as Hysterionica resinosa (Spreng.) P.L.R.Moraes
- Species Erigeron retroflexus Poir.
- Species Erigeron rhaeticus Brügger
- Species Erigeron rhizomactis G.L.Nesom
- Species Erigeron rhizomatus Cronquist
- Species Erigeron rhodopaeus (Vierh.) Hayek accepted as Erigeron alpinus subsp. rhodopaeus (Vierh.) Kožuharov & N.Andreev
- Species Erigeron rigidus Fr.
- Species Erigeron riklii Vaccari ex Fiori
- Species Erigeron riklii Vacc. ex Fiori
- Species Erigeron rivalis Sessé & Moc.
- Species Erigeron rivularis Sw. accepted as Erigeron jamaicensis L.
- Species Erigeron rivularis Spreng. ex DC. accepted as Erigeron bellioides DC.
- Species Erigeron robertianus Greene accepted as Erigeron eatonii var. plantagineus (Greene) Cronquist
- Species Erigeron robustior (Cronquist) G.L.Nesom
- Species Erigeron robustum Boiss. accepted as Brachyactis pubescens (DC.) Aitch. & C.B.Clarke
- Species Erigeron robustus Boiss.
- Species Erigeron rosulatus Wedd.
- Species Erigeron rottleri Spreng.
- Species Erigeron roylei DC.
- Species Erigeron rubicundus Greene accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron rubricaulis Sch.Bip.
- Species Erigeron ruderalis Salisb. accepted as Erigeron canadensis Brot.
- Species Erigeron rudis Wooton & Standl. accepted as Erigeron vreelandii Rydb.
- Species Erigeron rufescens Link ex Steud.
- Species Erigeron runcinatus Bertero ex DC. accepted as Erigeron bellioides DC.
- Species Erigeron rupestre
- Species Erigeron rupestris Schleich.
- Species Erigeron rupestris Bluff & Fingerh.
- Species Erigeron rupestris Popov
- Species Erigeron rupestris Hoppe ex DC. accepted as Erigeron pulchellus Michx.
- Species Erigeron rupestris Gremli accepted as Erigeron schleicheri Gremli
- Species Erigeron rupestris (Popov) Popov ex Novopokr. accepted as Aster popovii Botsch.
- Species Erigeron rupicola Phil.
- Species Erigeron rusbyi A.Gray accepted as Erigeron arizonicus A.Gray
- Species Erigeron rutilus Poir. accepted as Psiadia callocephala Cordem.
- Species Erigeron rybius G.L.Nesom
- Species Erigeron rydbergii Cronquist
- Species Erigeron sachalinensis Botsch.
- Species Erigeron salicinus Rydb. accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron salishii G.W.Douglas & Packer
- Species Erigeron salmonensis Brunsfeld & G.L.Nesom
- Species Erigeron salsuginosus (Richardson ex R.Br.) A.Gray
- Species Erigeron sanctarum S.Watson
- Species Erigeron sanctarum S.Watson ex Brandegee
- Species Erigeron sanglichensis Rech.f. & Edelb. accepted as Psychrogeton andryaloides var. poncinsii (Franch.) Grierson
- Species Erigeron sanguineus Parsa accepted as Pentanema indicum (L.)
- Species Erigeron saracachiensis G.L. Nesom
- Species Erigeron saxatilis G.L.Nesom
- Species Erigeron scaber Thunb. accepted as Pulicaria scabra (Thunb.) Druce
- Species Erigeron scaber Willd. ex Spreng. accepted as Erigeron acer L.
- Species Erigeron scaber Pers. accepted as Psiadia melastomatoides (Lam.) A.J.Scott
- Species Erigeron scaberrimum Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron scaberrimum (Less.) G.L.Nesom accepted as Erigeron veracruzensis G.L.Nesom
- Species Erigeron scaberrimus (Less.) G.L.Nesom
- Species Erigeron scaberrimus Gardner accepted as Leptostelma maximum D.Don
- Species Erigeron scaberulus Greene accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron scabiosifolius (J.Rémy) Herter accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron scabrellus Greene
- Species Erigeron scabrum Thunb. accepted as Pulicaria scabra (Thunb.) Druce
- Species Erigeron scandens (Thunb.) Thunb. ex Murray
- Species Erigeron scandens Thunb. accepted as Pertya scandens (Thunb. ex Thunb.) Sch.Bip.
- Species Erigeron scandinavicus Scheele ex Nyman accepted as Erigeron acris subsp. politus (Fr.) H.Lindb.
- Species Erigeron scaposus DC.
- Species Erigeron scaposus Torr. & A.Gray accepted as Erigeron glacialis (Nutt.) A.Nelson
- Species Erigeron scariosus Moench accepted as Erigeron gouanii L.
- Species Erigeron scaturicola Fernald accepted as Erigeron philadelphicus Michx.
- Species Erigeron sceptrifer G.L.Nesom
- Species Erigeron schalbusii Vierh.
- Species Erigeron schelkovnikovii Vierh.
- Species Erigeron schiedeanus Less. accepted as Laennecia schiedeana (Less.) G.L.Nesom
- Species Erigeron schikotanensis Barkalov
- Species Erigeron schimperi Sch.Bip. ex Schweinf. accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron schimperi (Sch.Bip. ex A.Rich.) Sch.Bip. accepted as Conyza schimperi Sch.Bip. ex A.Rich.
- Species Erigeron schleicheri Gremli
- Species Erigeron schmalhausenii Popov
- Species Erigeron schnackii Solbrig
- Species Erigeron schuechtii Sch.Bip. accepted as Leptostelma maximum D.Don
- Species Erigeron schultzii Zoll. accepted as Conyza maxima Zoll. & Moritzi
- Species Erigeron scoparioides G.L.Nesom
- Species Erigeron scopulinus G.L.Nesom & V.D.Roth
- Species Erigeron scorzonerifolius J.Rémy accepted as Symphyotrichum glabrifolium (DC.) G.L.Nesom
- Species Erigeron scotteri B.Boivin accepted as Erigeron nivalis Nutt.
- Species Erigeron scribneri Canby
- Species Erigeron scribneri Canby ex Rydb. accepted as Erigeron ochroleucus Nutt.
- Species Erigeron scribneri Canby ex Rydb. accepted as Erigeron ochroleucus Nutt.
- Species Erigeron seemannii Greene
- Species Erigeron semiamplexicaule Meyen accepted as Aster squamatus (Spreng.) Hieron.
- Species Erigeron semiamplexicaulis Meyen accepted as Aster squamatus (Spreng.) Hieron.
- Species Erigeron semibarbatus DC.
- Species Erigeron semiovalis Urb. accepted as Erigeron bellioides DC.
- Species Erigeron semirasus Wooton & Standl. accepted as Erigeron platyphyllus Greene
- Species Erigeron semperflorens Roezl ex Haage & Schmidt
- Species Erigeron seneciiformis S.F.Blake accepted as Leptostelma tweediei (Hook. & Arn.) D.J.N.Hind & G.L.Nesom
- Species Erigeron senecio auct.am. ex Steud.
- Species Erigeron senecio Sch.Bip.
- Species Erigeron senecio Sch.Bip. ex Webb & Berthel. accepted as Senecio vulgaris L.
- Species Erigeron senecioides Wedd. accepted as Laennecia artemisiifolia (Meyen & Walp.) G.L.Nesom
- Species Erigeron senilis Wooton & Standl. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron septentrionalis (Fernald & Wiegand) Holub accepted as Erigeron annuus subsp. septentrionalis (Fernald & Wiegand) Wagenitz
- Species Erigeron seravschanicus Popov
- Species Erigeron sericeus Retz.
- Species Erigeron serotinus Weihe accepted as Erigeron acris subsp. serotinus (Weihe) Greuter
- Species Erigeron serpentarius Banks ex Steud. accepted as Erigeron bellidifolius Muhl. ex Willd.
- Species Erigeron serpentinus G.L.Nesom
- Species Erigeron serratus Forssk. accepted as Erigeron aegyptiacus L.
- Species Erigeron sessilifolius F.Muell. accepted as Iotasperma sessilifolia (F.Muell.) G.L.Nesom
- Species Erigeron setchellii Jeps. accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron setiferus Post ex Boiss. accepted as Erigeron canadensis L.
- Species Erigeron setosus (Benth.) M.Gray
- Species Erigeron setulosus Greene accepted as Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & A.Gray
- Species Erigeron shahvaricus Rech.f. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron shepardii Post accepted as Erigeron acris L.
- Species Erigeron siculus L. accepted as Pulicaria sicula (L.) Moris
- Species Erigeron silenifolius (Turcz. ex Turcz.) Botsch.
- Species Erigeron simplex Greene accepted as Erigeron grandiflorus Hook.
- Species Erigeron simulans Greene accepted as Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & A.Gray
- Species Erigeron sionis Cronquist
- Species Erigeron sivinskii G.L.Nesom
- Species Erigeron smithii Rydb. accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron socorrensis Brandegee
- Species Erigeron sodiroi Hieron. ex Sodiro
- Species Erigeron sodiroi Hieron. accepted as Oritrophium limnophilum (Sch.Bip.) Cuatrec.
- Species Erigeron sogdianus Popov
- Species Erigeron solidaginoides Schltdl.
- Species Erigeron solisaltator G.L.Nesom accepted as Erigeron divergens Torr. & A.Gray
- Species Erigeron songoricus Y.Wei & C.H.An
- Species Erigeron sonnei Greene accepted as Erigeron eatonii var. sonnei (Greene) G.L.Nesom
- Species Erigeron sordidus Gillies ex Hook. & Arn. accepted as Erigeron bonariensis L.
- Species Erigeron sparsiflorus Eastw.
- Species Erigeron sparsifolius Eastw.
- Species Erigeron spathulatus Schumach. & Thonn.
- Species Erigeron spathulatus Schumach.
- Species Erigeron spathulatus Wedd. accepted as Erigeron ecuadoriensis Hieron.
- Species Erigeron spathulatus Vahl accepted as Conyza laevigata (Rich.) Pruski
- Species Erigeron spathulifolius (Maxim.) H.S.Pak accepted as Aster spathulifolius Maxim.
- Species Erigeron spathulifolius Howell accepted as Erigeron cascadensis A.Heller
- Species Erigeron spathulifolius Rydb. accepted as Erigeron leiomerus A.Gray
- Species Erigeron spatuliformis Howell
- Species Erigeron speciosus (Lindl.) DC.
- Species Erigeron sphaeroxylus Gilli accepted as Psychrogeton sphaeroxylus (Gilli) Grierson
- Species Erigeron spiciformis Griseb. accepted as Conyza spiciformis (Griseb.) Zardini
- Species Erigeron spiculosus Hook. & Arn. accepted as Conyza spiculosa (Hook. & Arn.) Zardini
- Species Erigeron spinosus Sch.Bip.
- Species Erigeron spinosus Sch.Bip. ex Schweinf. accepted as Conyza spinosa (Sch.Bip.) Sch.Bip. ex Oliv. & Hiern
- Species Erigeron spinulosus Phil. accepted as Conyza spiculosa (Hook. & Arn.) Zardini
- Species Erigeron sprengelii Sch.Bip. ex Walp. accepted as Nidorella auriculata DC.
- Species Erigeron squarrosus [Clairv.]
- Species Erigeron squarrosus Lindl. accepted as Erigeron glaucus Ker Gawl.
- Species Erigeron squarrosus Clairv. accepted as Inula conyza (Griess.) DC.
- Species Erigeron squarrosus Walter accepted as Chrysopsis gossypina (Michx.) Elliott
- Species Erigeron stanfordii I.M.Johnst. ex G.L.Nesom
- Species Erigeron stanleyi (A.R.G.Mundell) A.R.G.Mundell
- Species Erigeron stapfianus Rech.f. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron stellatus (Hook.f.) W.M.Curtis
- Species Erigeron stenodon Rech.f. & Edelb. accepted as Psychrogeton andryaloides subsp. andryaloides
- Species Erigeron stenophyllus D.C.Eaton accepted as Erigeron arenarioides (D.C.Eaton ex A.Gray) A.Gray ex Rydb.
- Species Erigeron stenophyllus Nutt. accepted as Erigeron foliosus Nutt.
- Species Erigeron stenophyllus Hook. & Arn. accepted as Conyza gayana Phil.
- Species Erigeron stenophyllus A.Gray accepted as Erigeron utahensis A.Gray
- Species Erigeron steudelii (Sch.Bip. ex A.Rich.) Sch.Bip. ex Schweinf. accepted as Conyza steudelii Sch.Bip. ex A.Rich.
- Species Erigeron stipulatus Schumach.
- Species Erigeron stipulatus accepted as Blumea viscosa (Mill.) V.M.Badillo
- Species Erigeron stocksianus Boiss. accepted as Chamaegeron oligocephalus Schrenk
- Species Erigeron stolonifer Greene accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron striatus Greene accepted as Erigeron foliosus Nutt.
- Species Erigeron strictissimus Wender. accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron strictus Hook. & Arn.
- Species Erigeron strictus DC. accepted as Erigeron canadensis L.
- Species Erigeron strigosum Muhl. accepted as Erigeron strigosus var. strigosus Muhl. ex Willd.
- Species Erigeron strigosus Muhl. ex Willd.
- Species Erigeron strigosus Bigelow
- Species Erigeron strigulosus Greene
- Species Erigeron stuebelii Hieron. accepted as Oritrophium peruvianum (Lam.) Cuatrec.
- Species Erigeron stuessyi Valdeb.
- Species Erigeron subacaulis (McVaugh) G.L.Nesom
- Species Erigeron subalpinus Urb.
- Species Erigeron subandinus Phil. accepted as Erigeron fasciculatus Colla
- Species Erigeron subasper Greene accepted as Erigeron formosissimus Greene
- Species Erigeron subcanescens Rydb. accepted as Erigeron caespitosus Nutt.
- Species Erigeron subcostatus Lunell accepted as Erigeron glabellus Nutt.
- Species Erigeron subdecurrens Sch.Bip.
- Species Erigeron subdecurrens Sch.Bip. ex A.Gray accepted as Laennecia schiedeana (Less.) G.L.Nesom
- Species Erigeron subdecurrens A.Gray accepted as Laennecia coulteri (A.Gray) G.L.Nesom
- Species Erigeron subglaber Cronquist
- Species Erigeron sublyratus Roxb. ex DC.
- Species Erigeron subspicatus Benth. ex Benth. accepted as Laennecia schiedeana (Less.) G.L.Nesom
- Species Erigeron subtrinervis Rydb. ex Porter & Britton
- Species Erigeron suksdorfii Greene
- Species Erigeron sulcatum DC. accepted as Leptostelma maximum D.Don
- Species Erigeron sulcatus DC. accepted as Leptostelma maximum D.Don
- Species Erigeron sulcatus Nees accepted as Erigeron pumilus Nutt.
- Species Erigeron sulcatus Meyen accepted as Erigeron primulifolium (Lam.) Greuter
- Species Erigeron sulivani Hook.f.
- Species Erigeron sullivanii Hook.f. accepted as Erigeron incertus (d'Urv.) Skottsb.
- Species Erigeron sumatrensis Retz.
- Species Erigeron superbus Greene
- Species Erigeron superbus Greene ex Rydb. accepted as Erigeron eximius Greene
- Species Erigeron supplex A.Gray
- Species Erigeron swatensis Grierson ex R.R.Stewart
- Species Erigeron sylvaticus Phil.
- Species Erigeron sylvestris M.E.Jones accepted as Erigeron strigulosus Greene
- Species Erigeron taipeiensis
- Species Erigeron talyschensis Tzvelev
- Species Erigeron tardus Lunell accepted as Erigeron glabellus Nutt.
- Species Erigeron tasmanicus (Hook.f.) Hook.f.
- Species Erigeron tatrae Vierh.
- Species Erigeron taylori Britton & P.Wilson
- Species Erigeron taylorii Britton & P.Wilson
- Species Erigeron telekii Schweinf. ex Engl.
- Species Erigeron telekii Schweinf. accepted as Senecio telekii (Schweinf.) O.Hoffm.
- Species Erigeron tenellus DC.
- Species Erigeron tenellus Fisch. ex Herder accepted as Erigeron armerifolius Turcz. ex DC.
- Species Erigeron tener (A.Gray) A.Gray
- Species Erigeron tener M.E.Jones accepted as Erigeron eatonii A.Gray
- Species Erigeron tenerrimus (Less.) Drake accepted as Tetramolopium tenerrimum (Less.) Nees
- Species Erigeron tenuicaulis Ling & Y.L.Chen
- Species Erigeron tenuicaulis M.E.Jones accepted as Erigeron fraternus Greene
- Species Erigeron tenuifolius Hook.f. accepted as Darwiniothamnus tenuifolius (Hook.f.) Harling
- Species Erigeron tenuifolius Sch.Bip. accepted as Galatella linosyris (L.) Rchb.f.
- Species Erigeron tenuis Torr. & A.Gray
- Species Erigeron tenuissimus Greene accepted as Erigeron foliosus var. foliosus Nutt.
- Species Erigeron tephrodes Greene accepted as Erigeron tracyi Greene
- Species Erigeron tephropodus G.L.Nesom
- Species Erigeron tergoalbus Cuatrec. accepted as Oritrophium tergoalbum (Cuatrec.) Cuatrec.
- Species Erigeron tetrapleurus (A.Gray) A.Heller accepted as Erigeron utahensis var. utahensis A.Gray
- Species Erigeron thermarum (Phil.) Cabrera accepted as Conyza thermarum Phil.
- Species Erigeron thompsonii S.F.Blake ex Thomps.
- Species Erigeron thompsonii S.F.Blake
- Species Erigeron thompsonii S.F.Blake ex J.W.Thomps. accepted as Erigeron peregrinus var. thompsonii (S.F.Blake ex J.W.Thomps.) Cronquist
- Species Erigeron thrincioides Griseb.
- Species Erigeron thunbergii A.Gray
- Species Erigeron tianschanicus Botsch.
- Species Erigeron tilingii Vorosch. accepted as Erigeron acris subsp. politus (Fr.) H.Lindb.
- Species Erigeron tonsus Wooton & Standl. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron trachselii Dalla Torre
- Species Erigeron tracyi Greene
- Species Erigeron transsilvanicus Schur accepted as Erigeron bonariensis L.
- Species Erigeron traversii Shinners accepted as Erigeron strigosus var. strigosus Muhl. ex Willd.
- Species Erigeron tricholepis Sch.Bip.
- Species Erigeron tricuneatus L.f. accepted as Baccharis tricuneata (L.f.) Pers.
- Species Erigeron tridactylus DC. accepted as Microgyne trifurcata Less.
- Species Erigeron trifidus Hook.
- Species Erigeron trifidus Schltdl.
- Species Erigeron trifidus Larrañaga
- Species Erigeron trifurcatus (Less.) Gillies & Don ex Hook. & Arn. accepted as Microgyne trifurcata Less.
- Species Erigeron trigonus S.J.Forbes & D.I.Morris
- Species Erigeron trihecatactis S.F.Blake accepted as Conyza trihecatactis (S.F.Blake) Cuatrec.
- Species Erigeron trilobus (Decne.) Boiss.
- Species Erigeron trilobus Sond. accepted as Erigeron karvinskianus DC.
- Species Erigeron trimorphopsis Botsch.
- Species Erigeron tripartitus S.F.Blake accepted as Erigeron karvinskianus DC.
- Species Erigeron triplinervis Sch.Bip. ex Baker accepted as Baccharis vulneraria Baker
- Species Erigeron tripolioides Phil. accepted as Symphyotrichum vahlii (Gaudich.) G.L.Nesom
- Species Erigeron trisulcus D.Don accepted as Erigeron trilobus (Decne.) Boiss.
- Species Erigeron tsuneoi Tatew. accepted as Erigeron thunbergii var. angustifolius (Tatew.) Hara
- Species Erigeron tuberosus L. accepted as Jasonia tuberosa (L.) DC.
- Species Erigeron tucumanensis Cabrera accepted as Leptostelma tucumanense (Cabrera) A.M.Teles
- Species Erigeron tuerckheimii Urb.
- Species Erigeron tunariensis Kuntze accepted as Conyza tunariensis (Kuntze) Zardini
- Species Erigeron turczaninowii Wedd.
- Species Erigeron turkestanicus (Regel & Schmalh.) O.Fedtsch. accepted as Psychrogeton turkestanicus O.Hoffm. ex Paulsen
- Species Erigeron turkestanicus Vierh. accepted as Erigeron lachnocephalus Botsch.
- Species Erigeron turneri Greene
- Species Erigeron turnerorum G.L.Nesom
- Species Erigeron turricola Skottsb. accepted as Erigeron ingae Skottsb.
- Species Erigeron tuxtlensis Sessé & Moc.
- Species Erigeron tweediei Hook. & Arn. accepted as Leptostelma tweediei (Hook. & Arn.) D.J.N.Hind & G.L.Nesom
- Species Erigeron tweedyanus M.L.Canby & Rose
- Species Erigeron tweedyanus Canby & Rose accepted as Erigeron ochroleucus Nutt.
- Species Erigeron tweedyi Canby
- Species Erigeron uintahensis Cronquist
- Species Erigeron uliginosus Benth.
- Species Erigeron uliginosus Turcz. ex Ledeb. accepted as Erigeron armerifolius Turcz. ex DC.
- Species Erigeron umbellatus Gilib. accepted as Erigeron acer L.
- Species Erigeron umbrosus (Kar. & Kir.) Boiss.
- Species Erigeron umbrosus (Kar. & Kir.) Popov
- Species Erigeron unalaschkensis Less. accepted as Erigeron peregrinus var. peregrinus (Banks ex Pursh) Greene
- Species Erigeron unalaschkensis (DC.) Vierh. accepted as Erigeron humilis Graham
- Species Erigeron uncialis S.F.Blake
- Species Erigeron undulatus Sessé & Moc.
- Species Erigeron undulatus Moench accepted as Erigeron bonariensis L.
- Species Erigeron unguiphyllus G.L.Nesom
- Species Erigeron unifloroides Vierh. accepted as Erigeron pulchellus Michx.
- Species Erigeron uniflorus L.
- Species Erigeron uniflorus Sm. accepted as Erigeron pulchellus Michx.
- Species Erigeron unifolius
- Species Erigeron untermannii S.L.Welsh & Goodrich
- Species Erigeron untermanniorum S.L.Welsh
- Species Erigeron unuloides
- Species Erigeron uralensis Less. accepted as Erigeron acris subsp. brachycephalus (H.Lindb.) Hiitonen
- Species Erigeron ursinus D.C.Eaton
- Species Erigeron ursinus Rech.f. accepted as Erigeron acer subsp. arctophilus (Rech.f.) Rech.f.
- Species Erigeron utahensis A.Gray
- Species Erigeron vagus Payson
- Species Erigeron vahlii Gaudich. accepted as Symphyotrichum vahlii (Gaudich.) G.L.Nesom
- Species Erigeron valesiacus Reut. ex Vierh.
- Species Erigeron vandasii Vierh.
- Species Erigeron variegatus (Sch.Bip. ex A.Rich.) Sch.Bip. accepted as Conyza variegata var. variegata
- Species Erigeron variegatus (Sch.Bip. ex A.Rich.) Sch.Bip. ex Schweinf. & Asch accepted as Conyza variegata Sch.Bip. ex A.Rich.
- Species Erigeron variifolius S.F.Blake
- Species Erigeron varius Webb accepted as Conyza varia (Webb) Wild
- Species Erigeron vegaensis Urb.
- Species Erigeron velutipes Hook. & Arn.
- Species Erigeron venezuelensis Steyerm. accepted as Oritrophium venezuelense (Steyerm.) Cuatrec.
- Species Erigeron venustus Botsch. accepted as Erigeron caucasicus subsp. venustus (Botsch.) Grierson
- Species Erigeron veracruzensis G.L.Nesom
- Species Erigeron verguinii Sennen
- Species Erigeron vernus (L.) Torr. & A.Gray
- Species Erigeron versicolor (Greenm.) G.L.Nesom
- Species Erigeron vetensis Rydb.
- Species Erigeron vicarius Botsch.
- Species Erigeron vichrenensis Pawł.
- Species Erigeron vicinus G.L.Nesom
- Species Erigeron vidalii Phil. accepted as Erigeron othonnifolius Hook. & Arn.
- Species Erigeron vierhapperi (Briq. & Cav.) Janch.
- Species Erigeron villarsii Bellardi accepted as Erigeron atticus Vill.
- Species Erigeron villarsii Willd. accepted as Erigeron acer L.
- Species Erigeron villosulus Greene accepted as Erigeron speciosus (Lindl.) DC.
- Species Erigeron villosus Steud. accepted as Symphyotrichum pilosum var. pilosum (Willd.) G.L.Nesom
- Species Erigeron vilmorinii (Franch.) Botsch. accepted as Aster diplostephioides (DC.) Benth. ex C.B.Clarke
- Species Erigeron violaceus Popov
- Species Erigeron virens russ. ex DC. accepted as Blumea virens DC.
- Species Erigeron virgatus Gueldenst. ex Ledeb.
- Species Erigeron viscidulus (A.Gray) Greene accepted as Erigeron petrophilus var. viscidulus (A.Gray) G.L.Nesom
- Species Erigeron viscidus Rydb. accepted as Erigeron formosissimus var. viscidus (Rydb.) Cronquist
- Species Erigeron viscosus Desf. accepted as Psiadia glutinosa Jacq.
- Species Erigeron viscosus L. accepted as Dittrichia viscosa (L.) Greuter
- Species Erigeron vittadinia F.Muell. accepted as Vittadinia scabra DC.
- Species Erigeron vreelandii Rydb.
- Species Erigeron vreelandii Greene
- Species Erigeron vulgaris Scheele ex Nyman accepted as Erigeron acer L.
- Species Erigeron wahwahensis S.L.Welsh accepted as Erigeron jonesii Cronquist
- Species Erigeron warnockii (Shinners) Shinners
- Species Erigeron watsonii (A.Gray) Cronquist
- Species Erigeron weddelianus Sodiro
- Species Erigeron weddelianus Hieron.
- Species Erigeron weddellianus Hieron. ex Sodiro
- Species Erigeron weddellianus Hieron. accepted as Erigeron ecuadoriensis Hieron.
- Species Erigeron wellsii G.L.Nesom
- Species Erigeron welwitschii Hiern accepted as Felicia welwitschii (Hiern) Grau
- Species Erigeron wendelboi Rech.f. accepted as Psychrogeton olgae Novopokr. ex Nevski
- Species Erigeron wightianus Wall. accepted as Pulicaria wightiana (DC.) C.B.Clarke
- Species Erigeron wightii DC. accepted as Erigeron pulchellus Michx.
- Species Erigeron wilczekii F.O.Wolf ex Fiori
- Species Erigeron wilkenii O'Kane
- Species Erigeron williamsii Phil. accepted as Erigeron tracyi Greene
- Species Erigeron wislizeni (A.Gray) Greene
- Species Erigeron wootonii Rydb. accepted as Lachnophyllum noeanum Boiss.
- Species Erigeron woronowii Vierh.
- Species Erigeron wyomingensis A.Nelson accepted as Erigeron concinnus var. condensatus D.C.Eaton
- Species Erigeron wyomingia Rydb. accepted as Erigeron pulcherrimus A.Heller
- Species Erigeron wyomingius Rydb.
- Species Erigeron xanti Engelm. ex Millsp.
- Species Erigeron yakimensis A.Nelson accepted as Erigeron linearis (Hook.) Piper
- Species Erigeron yellowstonensis A.Nelson accepted as Erigeron acris var. kamtschaticus (DC.) Herder
- Species Erigeron yukonensis Rydb.
- Species Erigeron zacatensis G.L.Nesom
- Species Erigeron zederbaueri Vierh.
- Species Erigeron zerdanus Boiss. accepted as Psychrogeton amorphoglossus (Boiss.) Novopokr.
- Species Erigeron zollingeri Sch.Bip. ex Miq.
- Species Erigeron zollingeri Sch.Bip.
- Species Erigeron zosonius H.S.Pak
- Species Erigeron zothecinus S.L.Welsh accepted as Erigeron concinnus var. subglaber (Cronquist) G.L.Nesom
- Genus Eschenbachia Moench accepted as Erigeron L.
- Genus Fimbrillaria Cass. accepted as Erigeron L.
- Genus Fragmosa Raf. accepted as Erigeron L.
- Genus Gusmania J.Rémy accepted as Erigeron L.
- Genus Hysterionica Willd. (12)
- Genus Leptostelma D.Don (6)
- Genus Neja D.Don (5)
- Subtribe Conyzinae Benth. & Hook.f. accepted as Conyzinae Horan. (2)
- Subtribe Denekiinae G.L.Nesom (1)
- Subtribe Doellingeriinae G.L. Nesom (13)
- Subtribe Egletinae G.L. Nesom (11)
- Subtribe Erigeroneae Gren. & Godr. accepted as Conyzinae Horan.
- Subtribe Eschenbachiinae G.L. Nesom (60)
- Subtribe Feliciinae G.L.Nesom accepted as Homochrominae Benth.
- Subtribe Formaniinae G.L.Nesom (1)
- Subtribe Geissolepinae G.L.Nesom (1)
- Subtribe Grangeinae Benth. (51)
- Subtribe Grangeinae Benth. & Hook.f. accepted as Grangeinae Benth.
- Subtribe Gutierreziinae G.L.Nesom (69)
- Subtribe Heterochrominae Benth. accepted as Asterinae (Cass.) Dumort.
- Subtribe Heterochrominae Benth. & Hook.f.
- Subtribe Heterothalaminae Endl. accepted as Baccharidinae Less.
- Subtribe Hinterhuberinae Cuatrec. accepted as Baccharidinae Less.
- Subtribe Homochrominae Benth. (166)
- Subtribe Homochrominae Benth. & Hook.f.
- Subtribe Ionactinae G.L. Nesom (6)
- Subtribe Iranoasterinae G.L.Nesom
- Subtribe Lageniferinae G.L.Nesom accepted as Lagenophorinae G.L. Nesom
- Subtribe Lagenophorinae Y.R.Ling
- Subtribe Lagenophorinae G.L. Nesom (28)
- Subtribe Machaerantherinae G.L.Nesom (283)
- Subtribe Madagasterinae G.L. Nesom (18)
- Subtribe Mairiinae G.L. Nesom (3)
- Subtribe Nannoglottidinae G.L. Nesom (3)
- Subtribe Oclemininae G.L.Nesom (4)
- Subtribe Oritrophiinae G.L. Nesom (21)
- Subtribe Pentachaetinae G.L.Nesom (45)
- Subtribe Podocominae G.L.Nesom accepted as Baccharidinae Less.
- Subtribe Printziinae G.L. Nesom (6)
- Subtribe Pteroniinae G.L. Nesom (72)
- Subtribe Solidagininae O.Hoffm. (197)
- Subtribe Symphyotrichinae G.L.Nesom (111)
- Genus ×Asterigeron Tzvelev
- Genus ×Heterokalimeris Kitam.
- Genus Albinia
- Genus Alix Comm. ex DC. accepted as Psiadia Jacq. ex Willd.
- Genus Allittia P.S.Short accepted as Brachyscome Cass. (2)
- Genus Amellus P.Browne accepted as Melanthera Rohr
- Genus Amellus Adans. accepted as Amellus L.
- Genus Amellus Ortega ex Willd. accepted as Amellus L.
- Genus Ammodia Nutt. accepted as Heterotheca Cass.
- Genus Amphirhapis DC. accepted as Duhaldea DC.
- Genus Aphantochaeta A.Gray accepted as Chaetopappa DC.
- Genus Aplactis Raf. accepted as Solidago L.
- Genus Arida (R.L.Hartm.) D.R.Morgan & R.L.Hartm. accepted as Leucosyris Greene (6)
- Genus Asteridium Engelm. ex Walp. accepted as Chaetopappa DC.
- Genus Asteropterus Vaill. accepted as Printzia Cass.
- Genus Bellidiopsis (DC.) Spach
- Genus Bellidium Bertol. accepted as Bellis L.
- Genus Belliopsis Pomel accepted as Bellis L.
- Genus Biotia DC. accepted as Eurybia (Cass.) Gray (1)
- Genus Borkonstia Ignatov accepted as Rhinactinidia Novopokr.
- Genus Botryadenia Fisch. & C.A.Mey. accepted as Myriactis Less.
- Genus Bourdonia Greene accepted as Chaetopappa DC.
- Genus Brachyachyris Spreng. accepted as Gutierrezia Lag.
- Genus Brachychaeta Torr. & A.Gray accepted as Solidago L.
- Genus Brachycome Gaudich. accepted as Vittadinia A.Rich.
- Genus Brachycome Cass. accepted as Brachyscome Cass.
- Genus Brachyridium Meisn. accepted as Lepidophyllum Cass.
- Genus Brachyris Nutt. accepted as Gutierrezia Lag.
- Genus Brachystephium Less. accepted as Brachyscome Cass.
- Genus Brephocton Raf. accepted as Rochonia DC.
- Genus Brintonia Greene accepted as Solidago L.
- Genus Cacotanis Raf. accepted as Boltonia L'Hér.
- Genus Callistemma Cass. accepted as Callistephus Cass.
- Genus Calycium Elliott accepted as Heterotheca Cass.
- Genus Centauridium Torr. & A.Gray accepted as Xanthisma DC.
- Genus Chaetanthera Nutt. accepted as Chaetopappa DC.
- Genus Chaetaphora Nutt. accepted as Chaetopappa DC.
- Genus Cheiroloma F.Muell. accepted as Calotis R.Br.
- Genus Chihuahuana Urbatsch & R.P.Roberts accepted as Medranoa Urbatsch & R.P.Roberts
- Genus Chondrophora Raf. ex Porter & Britton accepted as Bigelowia DC.
- Genus Chondrophora Raf. accepted as Bigelowia DC.
- Genus Chroilema bernhardi ex Bernh. accepted as Haplopappus Cass.
- Genus Collomia Sieber ex Steud.
- Genus Commidendron Lem. accepted as Commidendrum Burch. ex DC.
- Genus Conyzella Rupr.
- Genus Crinita Moench accepted as Galatella (Cass.) Cass.
- Genus Crinitaria Cass. accepted as Galatella (Cass.) Cass. (1)
- Genus Dasiorima Raf. accepted as Solidago subsect. Maritimae (Torr. & A.Gray) G.L.Nesom
- Genus Dectis Raf. accepted as Commidendrum Burch. ex DC.
- Genus Diotosperma A.Gray accepted as Ceratogyne Turcz.
- Genus Diplocoma D.Don ex D.Don accepted as Heterotheca Cass.
- Genus Diplogon Raf. accepted as Chrysopsis (Nutt.) Elliott
- Genus Diplopappus Cass. accepted as Chrysopsis (Nutt.) Elliott
- Genus Diplostelma A.Gray accepted as Chaetopappa DC.
- Genus Diplostelma Raf. accepted as Chaetopappa DC.
- Genus Distasis DC. accepted as Chaetopappa DC.
- Genus Dolichogyne DC. accepted as Nardophyllum (Hook. & Arn.) Hook. & Arn.
- Genus Doria Fabr. accepted as Solidago L. (1)
- Genus Dysaster H.Rob. & V.A.Funk accepted as Diplostephium Kunth
- Genus Elachothamnos DC. accepted as Minuria DC.
- Genus Elphegea Cass. accepted as Psiadia Jacq. ex Willd.
- Genus Emphysopus Hook.f. accepted as Solenogyne Cass.
- Genus Eremiastrum A.Gray accepted as Monoptilon Torr. & A.Gray
- Genus Eriocarpum Nutt. accepted as Xanthisma DC.
- Genus Eurybiopsis DC. accepted as Minuria DC.
- Genus Exothamnus D.Don ex Hook. accepted as Haplopappus Cass.
- Genus Eyselia Rchb.
- Genus Frappieria Cordem. accepted as Psiadia Jacq. ex Willd.
- Genus Frivaldia Endl. accepted as Microglossa DC.
- Genus Galatea (Cass.) Cass. ex Less. accepted as Galatella (Cass.) Cass.
- Genus Glycideras DC.
- Genus Glycyderas Cass. accepted as Psiadia Jacq. ex Willd.
- Genus Glyphia Cass. accepted as Psiadia Jacq. ex Willd.
- Genus Goniopogon Turcz. accepted as Calotis R.Br.
- Genus Greenella A.Gray accepted as Gutierrezia Lag.
- Genus Grindeliopsis Sch.Bip. accepted as Xanthocephalum Willd.
- Genus Guenthera Regel accepted as Xanthocephalum Willd.
- Genus Gymnaster Kitam. accepted as Miyamayomena Kitam. (1)
- Genus Haenelia Walp.
- Genus Haplodiscus (Benth.) Phil. accepted as Haplopappus Cass. (1)
- Genus Haxtonia A.Cunn. accepted as Olearia Moench
- Genus Hecatactis F. v. Mueller ex Mattf. accepted as Lagenophora Cass.
- Genus Heleastrum DC.
- Genus Hemiachyris DC. accepted as Gutierrezia Lag.
- Genus Hemibaccharis S.F.Blake accepted as Archibaccharis Heering
- Genus Henricia Cass. accepted as Psiadia Jacq. ex Willd.
- Genus Hesperastrum A.Gray accepted as Machaeranthera Nees
- Genus Hesperodoria Greene accepted as Chrysothamnus Nutt.
- Genus Heteractis DC. accepted as Gymnostephium Less.
- Genus Heterochaeta DC. accepted as Erigeron L.
- Genus Heyfeldera Sch.Bip.
- Genus Hisutsua DC.
- Genus Homochroma DC. accepted as Zyrphelis Cass.
- Genus Homopappus Nutt. accepted as Pyrrocoma Hook.
- Genus Isopappus Torr. & A.Gray accepted as Croptilon Raf.
- Genus Kaulfussia Nees accepted as Felicia Cass.
- Genus Keerlia DC. accepted as Aphanostephus DC.
- Genus Krylovia Schischk. accepted as Rhinactinidia Novopokr.
- Genus Laestadia Kunth accepted as Laestadia Kunth ex Less.
- Genus Lagenithrix G.L.Nesom accepted as Pappochroma Raf.
- Genus Lagenopappus G.L.Nesom accepted as Pappochroma Raf.
- Genus Leiachenis Raf. accepted as Eurybia (Cass.) Gray
- Genus Leioligo Raf. accepted as Solidago L.
- Genus Lepiactis Raf. accepted as Solidago subsect. Maritimae (Torr. & A.Gray) G.L.Nesom
- Genus Leptilon Raf. accepted as Conyza Less.
- Genus Leptocoma Less.
- Genus Leptothamnus DC.
- Genus Leucelene Greene accepted as Chaetopappa DC.
- Genus Leucopsidium Charpent. ex DC. accepted as Aphanostephus DC.
- Genus Leucopsis (DC.) Baker accepted as Noticastrum DC.
- Genus Linosyris Cass. accepted as Chrysocoma L. (2)
- Genus Luteidiscus H.St.John accepted as Tetramolopium Nees
- Genus Macronema Nutt. accepted as Ericameria Nutt.
- Genus Marsea Adans. accepted as Conyza Less.
- Genus Martinia Vaniot
- Genus Mauchia Kuntze
- Genus Mesoligus Raf. accepted as Symphyotrichum Nees
- Genus Microcalia A.Rich. accepted as Lagenophora Cass.
- Genus Microgynella Grau accepted as Microgyne Less.
- Genus Microtrichia DC. accepted as Grangea Adans.
- Genus Munychia Cass. accepted as Felicia Cass.
- Genus Musteron Raf. accepted as Erigeron L.
- Genus Neonesomia Urbatsch & R.P.Roberts accepted as Medranoa Urbatsch & R.P.Roberts (1)
- Genus Neosyris Greene accepted as Llerasia Triana
- Genus Notopappus Klingenb. accepted as Grindelia Willd. (5)
- Genus Novopokrovskia Tzvelev accepted as Psychrogeton Boiss.
- Genus Oligactis Raf. accepted as Sericocarpus Nees
- Genus Oreastrum Greene accepted as Oreostemma Greene
- Genus Paleaepappus Cabrera accepted as Nardophyllum (Hook. & Arn.) Hook. & Arn. (1)
- Genus Pembertonia P.S.Short accepted as Brachyscome Cass. (1)
- Genus Phalacroloma Cass. accepted as Erigeron L.
- Genus Piofontia Cuatrec. accepted as Linochilus Benth.
- Genus Plagiochilus Lindl.
- Genus Platystephium Gardner accepted as Egletes Cass.
- Genus Podocoma R.Br. accepted as Ixiochlamys F.Muell. & Sond.
- Genus Podopappus Hook. & Arn. accepted as Podocoma Cass.
- Genus Polyactidium DC. accepted as Erigeron L.
- Genus Polyactis Less. accepted as Erigeron L.
- Genus Polygyne Phil. accepted as Plagiocheilus Arn. ex DC.
- Genus Pseudolinosyris Novopokr. accepted as Crinitaria Cass. (3)
- Genus Psiadia Jacq. accepted as Psiadia Jacq. ex Willd.
- Genus Psiadiella Humbert accepted as Psiadia Jacq. (1)
- Genus Pterophora L. accepted as Pteronia L.
- Genus Pterophorus Boehm. accepted as Pteronia L.
- Genus Remya Hillebr. accepted as Remya Hillebr. ex Benth. & Hook.f.
- Genus Rhinactina Less. accepted as Rhinactinidia Novopokr.
- Genus Rhynchospermum Lindl. accepted as Rhynchospermum Reinw.
- Genus Sarcanthemum Cass. accepted as Psiadia Jacq.
- Genus Selloa Spreng. accepted as Gymnosperma Less. (2)
- Genus Shawia J.R.Forst. & G.Forst. accepted as Olearia Moench
- Genus Sideranthus Nutt. ex Nees accepted as Xanthisma DC.
- Genus Sideranthus Nutt. accepted as Sideranthus Nutt. ex Nees
- Genus Solidago Mill.
- Genus Steetzia Sond. accepted as Olearia Moench
- Genus Steiractis DC. accepted as Olearia Moench
- Genus Stenactis Cass. accepted as Erigeron L. (1)
- Genus Stereosanthus Franch. accepted as Nannoglottis Maxim.
- Genus Terranea Colla accepted as Erigeron L.
- Genus Trimorpha Cass. accepted as Erigeron L.
- Genus Trimorphaea Cass. accepted as Erigeron L.
- Genus Unamia Greene accepted as Oligoneuron Small
- Genus Vanclevea Greene accepted as Chrysothamnus Nutt.
- Genus Vierhapperia Hand.-Mazz. accepted as Nannoglottis Maxim.
- Genus Virgulaster Semple accepted as Symphyotrichum Nees
- Genus Virgulus Raf. accepted as Symphyotrichum Nees
- Genus Wardaster J.Small accepted as Aster L. (1)
- Genus Weberaster Á.Löve & D.Löve accepted as Eurybia (Cass.) Gray
- Genus Woodvillea DC. accepted as Erigeron L.
- Genus Wyomingia A.Nelson accepted as Erigeron L.
- Genus Xanthocoma Kunth accepted as Xanthocephalum Willd.
- Genus Xerobius Cass. accepted as Egletes Cass.
- Genus Xylovirgata Urbatsch & R.P.Roberts accepted as Medranoa Urbatsch & R.P.Roberts
- Tribe Athroismeae Panero (82)
- Tribe Bahieae B.G.Baldwin (86)
- Tribe Bellideae Cass. ex D.Don accepted as Astereae Cass.
- Tribe Bellieae DC. ex Godr. accepted as Bellidinae Willk.
- Tribe Bidentideae Godr. accepted as Coreopsideae Lindl.
- Tribe Calenduleae Cass. (121)
- Tribe Chaenactideae B.G.Baldwin (21)
- Tribe Chrysthellinae Ryding & K.Bremer accepted as Chrysanthellinae Ryding & K.Bremer
- Tribe Coreopsideae Lindl. (527)
- Tribe Cotuleae Lowe accepted as Anthemideae Cass.
- Tribe Doroniceae Panero (39)
- Tribe Eupatorieae Cass. (2 752)
- Tribe Feddeeae Pruski, Herrera, Anderb. & Franc.-Ort.
- Tribe Gnaphalieae Cass. ex Lecoq & Juill. (2 268)
- Tribe Helenieae Lindl. (138)
- Tribe Heliantheae Cass. (1 728)
- Tribe Inuleae Cass. (665)
- Tribe Iveae Rydb. accepted as Heliantheae Cass.
- Tribe Madieae Jeps. (228)
- Tribe Millerieae Lindl. (478)
- Tribe Neurolaeneae Rydb. (188)
- Tribe Perityleae B.G.Baldwin (78)
- Tribe Plucheeae Anderb. accepted as Inuleae Cass.
- Tribe Polymnieae (H.Rob.) Panero (8)
- Tribe Senecioneae Cass. (3 803)
- Tribe Tageteae Cass. (267)
- Tribe Ursinieae H.Rob. & Brettell accepted as Anthemideae Cass.
- Subtribe Nannoglottidinae Y.R.Ling accepted as Nannoglottidinae G.L. Nesom
- Genus Callilepis DC. (5)
- Genus Zoutpansbergia Hutch. accepted as Callilepis DC.
- Subfamily Baccharidoideae Burmeist. accepted as Asteroideae (Cass.) Lindl.
- Subfamily Barnadesioideae (Benth. & Hook.) K.Bremer & R.K.Jansen accepted as Barnadesioideae (D.Don) Bremer & Jansen
- Subfamily Barnadesioideae (D.Don) Bremer & Jansen (88)
- Subfamily Carduoideae Cass. ex Sweet (3 634)
- Subfamily Cichorioideae Chevall. (6 817)
- Subfamily Corymbioideae Panero & V.A.Funk (10)
- Subfamily Dicomoideae S. Ortiz (113)
- Subfamily Famatinanthoideae S.E.Freire, Ariza & Panero (1)
- Subfamily Gochnatioideae (Benth. & Hook.f.) Panero & V.A.Funk (103)
- Subfamily Gymnarrhenoideae Panero & V.A.Funk (2)
- Subfamily Hecastocleidoideae Panero & V.A.Funk (1)
- Subfamily Lactucoideae (Cass.) Lindl. accepted as Cichorioideae Chevall.
- Subfamily Lactucoideae Solbrig accepted as Cichorioideae Chevall.
- Subfamily Mutisioideae (Cass.) Lindl. (632)
- Subfamily Pertyoideae Panero & V.A.Funk (99)
- Subfamily Stifftioideae (D.Don) Panero (45)
- Subfamily Vernonioideae B.L.Turner ex R.K.Jansen & Stuessy accepted as Vernonioideae Lindl.
- Subfamily Vernonioideae Lindl. (2 357)
- Subfamily Wunderlichioideae Panero & V.A.Funk (42)
- Genus ×Anthisma
- Genus ×Anthocephalum
- Genus ×Chrysaboltonia
- Genus Absynthium G.Gaertn., B.Mey. & Scherb.
- Genus Acanthosonchus Don ex Hoffm.
- Genus Acarphaea Harv., Gray & ex.A.Gray
- Genus Achyrobaccharis Sch.Bip. ex Walp.
- Genus Achyrocoma Post & Kuntze
- Genus Achyrophorus Vaill. accepted as Hypochaeris L. (4)
- Genus Achyrostephus Kunze ex Rchb.
- Genus Acrolinium Engl.
- Genus Actispermum Raf.
- Genus Adenochaena Steud.
- Genus Adenochaena DC.
- Genus Adenoselen Spach
- Genus Aetheorrhiza Rchb.
- Genus Agalma Steud.
- Genus Aganippea Moc. ex Sessé ex DC. accepted as Jaegeria Kunth
- Genus Agathea Endl.
- Genus Agathomeris Laun.
- Genus Ageratiopsis Sch.Bip. ex Benth. accepted as Ageratina Spach
- Genus Aglaodendron J.Rémy
- Genus Agnesia Zuloaga & Judz.
- Genus Ailotheca Hemsl.
- Genus Aimorra Raf.
- Genus Ainsliea Kuntze
- Genus Alcinia Kunth
- Genus Aliconia Herrera
- Genus Allendea La Llave & Lex. accepted as Liabum Adans.
- Genus Alloeospermum Spreng.
- Genus Alloizonium Walp.
- Genus Aloiozonium Lindl.
- Genus Alymnia Neck. ex Spach
- Genus Amblycarpum Lem.
- Genus Amblyopelis Steud.
- Genus Ambraria Cruse
- Genus Ammanthus Boiss. & Heldr.
- Genus Amoleiachyris Sch.Bip.
- Genus Amphipappus Torr. & A.Gray
- Genus Anactis (Cass. ex DC.) Spach
- Genus Andriala Decne.
- Genus Andromachia Humb.
- Genus Anemonospermos Möhring
- Genus Anemonospermum Comm. ex Steud.
- Genus Anisorhamphus Endl.
- Genus Anisorrhamphus Rchb.
- Genus Anonymos Walter
- Genus Anthe-matricaria Geisenh. ex Domin
- Genus Anthemi-matricaria P.Fourn.
- Genus Anthochytrum Rchb. accepted as Crepis L.
- Genus Anticona E.Linares, J.Campos & A.Galán
- Genus Antitrixia Decaisne
- Genus Aplochlamis Steud.
- Genus Aptilon Raf.
- Genus Aquilula G.L.Nesom
- Genus Arachnopogon Berg ex Haberl
- Genus Archaetogeron Greenm.
- Genus Archanthemis Lo Presti & Oberpr.
- Genus Arctotheca Wendl.
- Genus Argyranthus Neck.
- Genus Argyrocome Breyne
- Genus Arnicula Kuntze
- Genus Arraschkoolia Sch.Bip. ex Hochst.
- Genus Arthemisia Neck.
- Genus Artimisia Roxb.
- Genus Asaemia Harv. ex Benth.
- Genus Ascaridia Rchb.
- Genus Aschenbornia Schauer accepted as Calea L.
- Genus Asiris Anonymous
- Genus Astartoseris N.Kilian, Hand, Hadjik., Christodoulou & Bou Dagh.-Kharr.
- Genus Asterago Everett
- Genus Asteridia N.T.Burb.
- Genus Asterigeron Tzvelev
- Genus Asteriscus Siegesb.
- Genus Asteromaea DC.
- Genus Athalmus Neck.
- Genus Atheolaena Rchb.
- Genus Atractylia Rchb.
- Genus Attractilis Hall. ex Scop.
- Genus Aucheria Steud.
- Genus Autunesia O.Hoffm.
- Genus Balladonia P.S.Short (1)
- Genus Barattia A.Gray & Engelm.
- Genus Barbeya Albov
- Genus Barckhausenia Menke
- Genus Barkhusenia Hoppe
- Genus Barrattia A.Gray & Engelm. ex A.Gray accepted as Simsia Pers.
- Genus Barroetia Post & Kuntze
- Genus Bartolia Adans. accepted as Tridax L.
- Genus Bastera J.F.Gmel.
- Genus Bastia Steud.
- Genus Behrinia Sieber ex Steud.
- Genus Bellidiastrum Vaill.
- Genus Bellidistrum Rchb.
- Genus Bembecodium Lindl.
- Genus Bennetia DC.
- Genus Berarda "Vill."St-Lager
- Genus Berckheya Pers.
- Genus Berinia Brignol.
- Genus Bernardia Endl.
- Genus Bertholetia Rchb.
- Genus Bertilia Cron
- Genus Bethencourtia Choisy
- Genus Binectaria Forssk.
- Genus Bizanilla J.Rémy
- Genus Blanchea Boiss.
- Genus Bojera Steud.
- Genus Bowmannia Gardner accepted as Trixis P.Browne
- Genus Brachioglottis Desportes
- Genus Brachyachaenium Baker accepted as Dicoma Cass.
- Genus Brachycladus Wittstein
- Genus Brachyglottis Forst.
- Genus Brachyoglotis Lam.
- Genus Brachyoglottis Scop.
- Genus Brachyrrhamphus Wittstein
- Genus Bracteantha Anderb.
- Genus Breteuillia Buc'hoz
- Genus Breteuillia Buc'hoz ex DC.
- Genus Buphthalmum Mill.
- Genus Cabralia F. von Paula von Schrank
- Genus Cacalia Burm.
- Genus Calendella Kuntze
- Genus Calimeris Nees
- Genus Callias Cass.
- Genus Calophthalmum Rchb.
- Genus Caltha Tourn. ex Adans.
- Genus Calycosorus Endl.
- Genus Calymnandra Lindl.
- Genus Campylochinium Endl.
- Genus Caputia B.Nord. & Pelser
- Genus Carelia Fabr. accepted as Ageratum L.
- Genus Carelia Möhring
- Genus Carelia Cav.
- Genus Carnutia Baker accepted as Melampodium L.
- Genus Carpezium Gouan
- Genus Catanance St.-Lag.
- Genus Catyona Lindl.
- Genus Centroclinion Orb.
- Genus Cephalopterum T.Post & Kuntze
- Genus Ceratogyna T.Post & Kuntze
- Genus Cereopsis Blanco
- Genus Cervana Endl.
- Genus Chaenolobus Small
- Genus Chaetantera Less.
- Genus Chaethymenia Endl.
- Genus Chaetophora Nutt. ex DC.
- Genus Chaetophora Schrank
- Genus Chakiatella DC.
- Genus Chalarium Poit. ex DC.
- Genus Chamaemelum Adans.
- Genus Chamissomenia Kuntze accepted as Schlechtendalia Less.
- Genus Chaptalia Royle
- Genus Chareis N.T.Burb.
- Genus Chersodoma Phil. & Cabrera
- Genus Chicorium Dumort.
- Genus Childsia Childs
- Genus Chilodia R.Br. accepted as Wulffia Neck.
- Genus Chiroloma T.Post & Kuntze
- Genus Chlaotrachelus Hook.f.
- Genus Chone Dulac
- Genus Chrisanthemum Neck. accepted as Chrysanthemum L.
- Genus Chrysaboltonia Arends
- Genus Chrysanthemoides Tourn. ex Medik.
- Genus Chrysocome St.-Lag.
- Genus Chrysogonum L. & F.Br.
- Genus Chrysopelta Tausch
- Genus Claotrachelus Zoll. & Moritz ex Zoll. accepted as Vernonia Schreb.
- Genus Clariona Spreng.
- Genus Clarionea Cass. accepted as Perezia Lag.
- Genus Clarionia D.Don accepted as Perezia Lag.
- Genus Cleistanthium Kunze
- Genus Cleithria Steud.
- Genus Clomenolepis Cass.
- Genus Cnenamum Tausch
- Genus Coelestina Hill
- Genus Coelestinia Endl.
- Genus Coenotus Benth. & Hook.f.
- Genus Colonnea Endl.
- Genus Colycea Fern.Casas & Susanna accepted as Centaurea L.
- Genus Conisa Desf. ex Steud.
- Genus Coniza Neck.
- Genus Conopsis Nutt. ex Less. accepted as Coreopsis L.
- Genus Conysa Adans.
- Genus Conysa Burm.f.
- Genus Conyza Hill
- Genus Conyzella Fabric. accepted as Conyza Less.
- Genus Conyzoides Tourn. ex DC.
- Genus Coriopsis Post & Kuntze
- Genus Coronocarpus Schumach.
- Genus Cosmus Pers. accepted as Cosmos Cav. (1)
- Genus Cotyla Kuntze & Post accepted as Cotula Tourn. ex L.
- Genus Covola Neck. ex Raf.
- Genus Cremocephalium Miq.
- Genus Crepidospermum Benth. & Hook.f.
- Genus Criscianthus Grossi & J.N.Nakaj.
- Genus Crossocephalum Britten
- Genus Crossolepsis N.T.Burb.
- Genus Cryptodia Sch.Bip.
- Genus Cryptopetalum Cass. accepted as Pectis L.
- Genus Cryptopetalum DC.
- Genus Ctenosperma F.Muell. ex Pfeiff.
- Genus Culcitum N.T.Burb.
- Genus Cupidone Lemaire
- Genus Cyclolepsis Endl.
- Genus Cyclopis Guill.
- Genus Cylindrachne Rchb.
- Genus Cyrethrum Boiss.
- Genus Dalea P.Browne accepted as Critonia P.Browne
- Genus Damatras Rchb.
- Genus Damatrias Rchb.
- Genus Delilea Kuntze
- Genus Delwiensia W.A.Weber & R.C.Wittmann
- Genus Dendrocacalia (Nakai) Nakai
- Genus Dendroviguiera E.E.Schill. & Panero
- Genus Deneckia Sch.Bip.
- Genus Denekea Dinter
- Genus Denneckia Steud.
- Genus Desmocephalus Benth. & Hook.f.
- Genus Dewildemania O.Hoffm. ex De Wild.
- Genus Diaspanthus Kitam.
- Genus Diatonta Walp. accepted as Bidens L.
- Genus Diatosperma Mueller Hal.
- Genus Diatosperma Müll.Berol.
- Genus Dichaeta Sch.Bip. accepted as Macvaughiella R.M.King & H.Rob.
- Genus Dicrocephala Royle
- Genus Diospermum Hook.f.
- Genus Diotis Schreb.
- Genus Diplopapus Raf.
- Genus Diplostylis Sond.
- Genus Diplothria Walp.
- Genus Disynanthes Rchb.
- Genus Disynapheia Steud.
- Genus Dithrichum DC.
- Genus Dolicholasium Spreng.
- Genus Dolicotheca Benth. & Hook.f.
- Genus Doria Adans.
- Genus Doroboea DC.
- Genus Dracopsis Cass. accepted as Rudbeckia L.
- Genus Duguldea Meisn.
- Genus Duhaldia Sch.Bip.
- Genus Dysinanthus Raf. ex DC.
- Genus Dysodea Borkh. accepted as Crepis L.
- Genus Dysodia DC.
- Genus Dysodia Spreng.
- Genus Ecliptica Rumph.
- Genus Edwardsia Endl.
- Genus Eizaguirrea J.Rémy
- Genus Electranthera Mesfin, D.J.Crawford & Pruski
- Genus Eleutheranthera Poit. ex Bosc
- Genus Elvina Steud.
- Genus Emelia Wight
- Genus Enchelya Lem.
- Genus Enchydra F.Muell.
- Genus Engelmannia Torr. & A.Gray
- Genus Englemannia A.Gray & ex.Nutt.
- Genus Enula Neck.
- Genus Epalthes Walp.
- Genus Epilasia Benth. & Hook.f.
- Genus Epilatoria Comm. ex Steud.
- Genus Epilepsis Lindl.
- Genus Erechthites Less.
- Genus Ericentrodea Blake, Sherff & Sherff
- Genus Eriocarpha Cass. accepted as Montanoa Cerv.
- Genus Erioclepis Fourr.
- Genus Eriocoryna Steud.
- Genus Erytheremia Endl.
- Genus Espletia Steud.
- Genus Eualcida Hemsl.
- Genus Eucalia Raeusch.
- Genus Eupatoriophalacron Adans.
- Genus Euphrosine Endl.
- Genus Euphrosinia Rchb.
- Genus Eurybia (Cass.) Cass. (1)
- Genus Euthamia Elliott
- Genus Eyselia Reichb. accepted as Egletes Cass.
- Genus Faberia Hemsl. ex Forb. & Hemsl.
- Genus Feea Kuntze
- Genus Filfia Holub
- Genus Fivaldia Walp.
- Genus Fleurotia Rchb.
- Genus Fornea Steud.
- Genus Frageria Delile ex Steud.
- Genus Frankia Steud. ex Steud.
- Genus Frankoeria Steud.
- Genus Freemannia Steud.
- Genus Frivaldzkia Rchb.
- Genus Gaillarda St.-Lag.
- Genus Gaillardia Fouger.: Biddulph
- Genus Galactella Raf.
- Genus Galardia Lam.
- Genus Galasia W.D.J.Koch
- Genus Galinsogaea Himpel accepted as Galinsoga Ruiz & Pav.
- Genus Galinsogaea Zucc.
- Genus Galinsogea Willd. accepted as Galinsoga Ruiz & Pav.
- Genus Galinsoja Roth accepted as Galinsoga Ruiz & Pav.
- Genus Galinzoga Dumort.
- Genus Galisongea Willd.
- Genus Gallinsoga St.Hil. accepted as Galinsoga Ruiz & Pav.
- Genus Gallinsoga J.St.-Hil.
- Genus Gamazygis Pritz.
- Genus Garaleum Sch.Bip.
- Genus Garcillasoa Post & Kuntze
- Genus Gareilassa Walp.
- Genus Garulium Bartl.
- Genus Gazaniopsis C.Huber
- Genus Gazzania
- Genus Geblera Kitag. accepted as Crepidifolium Sennikov
- Genus Geigera Less.
- Genus Gemmaria Noronha
- Genus Geracium Mössler accepted as Crepis L.
- Genus Gerbera Gronov.
- Genus Gerbera Cass.
- Genus Gerberia Cass.
- Genus Ginura Vidal y Soler
- Genus Ginura S.Vidal
- Genus Gnaphalium Adans.
- Genus Gnaphalodes Tourn. ex Adans.
- Genus Golionema "S.Wats." ex O.Hoffm.
- Genus Gomesia La Llave
- Genus Gomezia Benth. & Hook.f.
- Genus Gonzalezia E.E.Schill. & Panero
- Genus Gortera Hill
- Genus Grammartheon Rchb.
- Genus Grantia Griff.
- Genus Greenmaniella Sharp
- Genus Guandiola Steud.
- Genus Guardiola Cerv. ex Bonpl.
- Genus Guntheria Benth. & Hook.f.
- Genus Guzmannia F.Phil.
- Genus Gymnarrhea Steud.
- Genus Gymnema Endl.
- Genus Gymnoloma Ker Gawl.
- Genus Gymnostyles Raf.
- Genus Gymnoxis Steud.
- Genus Gymostyles Willd.
- Genus Gyneteria Spreng.
- Genus Gynoxis Rchb.
- Genus Haberlea Pohl ex Baker
- Genus Hacub Boehm.
- Genus Haegiela P.S.Short
- Genus Haenslera Steud.
- Genus Hainanecio Y.Liu & Q.E.Yang
- Genus Halea L. accepted as Eupatorium Tourn. ex L.
- Genus Hamalium Hemsl.
- Genus Hapalochlamys Kuntze
- Genus Hapalochlamys Rchb.
- Genus Hapalostephium D.Don accepted as Crepis L.
- Genus Hapalostephium D.Don ex Sweet
- Genus Hapalus Endl.
- Genus Haplopappus Endl.
- Genus Haradjania Rech.f.
- Genus Harpachaena Bunge accepted as Acanthocephalus Kar. & Kir.
- Genus Harpalyce D.Don
- Genus Harpocarpus Endl. accepted as Acanthocephalus Kar. & Kir.
- Genus Harrisonia Neck.
- Genus Hartwrightia A.Gray
- Genus Havanella Kuntze
- Genus Haxtonia Caley ex G.Don
- Genus Hecatactis F.Muell.
- Genus Hectorea DC.
- Genus Hedraiophyllum Less. ex Steud.
- Genus Hedypnois Schreb.
- Genus Heiseria E.E.Schill. & Panero
- Genus Helemonium Steud.
- Genus Heleneum Buckley
- Genus Helenia Mill.
- Genus Helenia Zinn
- Genus Heleniastrum Mill.
- Genus Heleniastrum Kuntze
- Genus Helenomoium Willd. ex DC. accepted as Heliopsis Pers.
- Genus Helianthemum Gray
- Genus Helichryson
- Genus Helicta Less.
- Genus Heliochroa A.Gray
- Genus Helipteron St.-Lag.
- Genus Helmentia J.St.-Hil.
- Genus Helminta Willd.
- Genus Helminthia DC.
- Genus Helminthion St.-Lag.
- Genus Helminthoteca Vaill. ex Juss.
- Genus Helminthotheca Vaill. ex Boehm.
- Genus Heloseris Rchb. ex Steud.
- Genus Hemilepis Schltdl. accepted as Leontodon L.
- Genus Hemilepis Kunze
- Genus Hemiptilium A.Gray accepted as Stephanomeria Nutt.
- Genus Hemolepis Hort. ex E.Vilm.
- Genus Henanthus Less
- Genus Henslera Rchb.
- Genus Heocarphus Phil.
- Genus Heraclea Hill
- Genus Herbichia Zaw.
- Genus Herbichia Zaw. ex Guill.
- Genus Herotium Steud.
- Genus Hersilea Klotzsch
- Genus Hertia Neck.
- Genus Hesperoseris Skottsb. accepted as Dendroseris D.Don
- Genus Heteracantha Link ex Steud.
- Genus Heteracea Steud.
- Genus Heteranthus Bonpl. ex Cass. accepted as Perezia Lag.
- Genus Heterodonta Nutt. ex Benth. & Hook.f.
- Genus Heterolaena Sch.Bip. ex Benth. & Hook.f. accepted as Chromolaena DC.
- Genus Heteromorpha Viv. ex Coss.
- Genus Heteropleura Sch.Bip. accepted as Hieracium Tourn. ex L.
- Genus Heterorachis Sch.Bip.
- Genus Heterospermum Willd. accepted as Heterosperma Cav.
- Genus Hieraceum Hoppe
- Genus Hierachium Hill
- Genus Hieraciastrum Heist. ex Fabr.
- Genus Hieracioides Fabr.
- Genus Hieracion St.-Lag.
- Genus Hieracum
- Genus Hierapicra Kuntze
- Genus Hingcha Roxb.
- Genus Hinghstonia Steud.
- Genus Hinterhubera Sch.Bip. accepted as Chrysanthellum Rich.
- Genus Hinterhubera Sch.Bip. ex Hochst. accepted as Chrysanthellum Rich.
- Genus Hinterhubera Sch.Bip.
- Genus Hiorthia Neck.
- Genus Hiortia Juss.
- Genus Hipochaeris Nocca
- Genus Hipochoeris Neck.
- Genus Hippia L.f. accepted as Cotula Tourn. ex L.
- Genus Hippophaestum Gray
- Genus Hisutua
- Genus Hochstettera Spach
- Genus Hohenwartha Vest
- Genus Homalanthus Wittst.
- Genus Homalotes Endl.
- Genus Homalotheca Rchb.
- Genus Homostylium Nees
- Genus Hookia Neck.
- Genus Hoorebeckia Steud.
- Genus Hoorebekia Corneliss.
- Genus Hopkirkia Spreng. accepted as Salmea DC.
- Genus Hopkirkia DC. accepted as Schkuhria Roth.
- Genus Huenefeldia Walp.
- Genus Hunefeldia Lindl.
- Genus Hunteria ex DC.
- Genus Hyalospermum Benth. & Hook.f.
- Genus Hylethale Link
- Genus Hymenomena Less.
- Genus Hymenostephium Benth. & Hook.f.
- Genus Hypochoeris L.
- Genus Hyppochaeris Biv.
- Genus Hysteronica Endl.
- Genus Hysterophorus Adans.
- Genus Ichthyothera [Klotzsch & ex]
- Genus Ichtyothere DC.
- Genus Icthyothere Baker
- Genus Ictinus Cass. accepted as Gorteria L.
- Genus Idianthes Desv. accepted as Crepis L.
- Genus Idicium Neck.
- Genus Indoixeris Kitam.
- Genus Infantea Remy accepted as Amblyopappus Hook. & Arn.
- Genus Ingenhousia Kuntze
- Genus Ingenhousia Steud.
- Genus Ingenhouzia Bertero ex DC.
- Genus Inthybus Herder
- Genus Intybellia Monn.
- Genus Intybus Fr. accepted as Crepis L.
- Genus Intybus Zinn
- Genus Inyonia M.E.Jones
- Genus Iocaste E.Mey. ex DC.
- Genus Iodocephalopsis S. Bunwong & H.Rob. (1)
- Genus Iodocephalopsis Bunwong & H.Rob.
- Genus Iranoaster Kaz.Osaloo, Farhani & Mozaff. (1)
- Genus Isanthus DC. accepted as Perezia Lag.
- Genus Ischnaea
- Genus Ismaria Raf. accepted as Brickellia Elliott
- Genus Isocarpha Less. accepted as Ageratum L.
- Genus Isomeria D.Don ex DC.
- Genus Iteria Hort.
- Genus Ixauchenus Cass. accepted as Lagenophora Cass.
- Genus Ixiauchenus Less.
- Genus Ixine Hill
- Genus Ixiochlamys F.Muell. ex Sond.
- Genus Jacobaea Burm.
- Genus Jacobaea Burm. ex Kuntze
- Genus Jacobea Thunb.
- Genus Jacosta DC.
- Genus Jacquemontia Bél.
- Genus Jalambica Raf.
- Genus Jamesia Nees
- Genus Japonicalia C.Ren & Q.E.Yang
- Genus Jardinia Sch.Bip.
- Genus Jeffreya Cabrera
- Genus Jeffreyzia
- Genus Jessenia F.Muell. ex Sond.
- Genus Jobaphes Phil. accepted as Aphyllocladus Wedd. (1)
- Genus Jocaste Meisn.
- Genus junceum (Poljakov) Filatova
- Genus Kahiria Forssk.
- Genus Kalimares Raf.
- Genus Kallophyllon Pohl ex Baker
- Genus Karthemia Sch.Bip.
- Genus Keerlia A.Gray & Engelm.
- Genus Kegelia Sch.Bip. accepted as Eleutheranthera Poit.
- Genus Keringa Raf.
- Genus Kiliana Sch.Bip. ex Hochst.
- Genus Kiliania Sch.Bip. ex Benth. & Hook.f.
- Genus Kitamuraea Rauschert accepted as Miyamayomena Kitam.
- Genus Kitamuraster Soják accepted as Miyamayomena Kitam.
- Genus Kleina Cothen.
- Genus Klenzea Sch.Bip. ex Steud.
- Genus Klenzea Sch.Bip. ex Hochst.
- Genus Koanophyllon Arruda ex H.Kost.
- Genus Koanophyllum Arruda ex H.Kost.
- Genus Koechlea Endl.
- Genus Kralikia Sch.Bip.
- Genus Kraussia Sch.Bip.
- Genus Krenamon Adans.
- Genus Kuhniodes Post & Kuntze
- Genus Kyberia Neck.
- Genus Kymapleura (Nutt.) Nutt. accepted as Agoseris Raf.
- Genus Kyrstenia Neck. ex Greene accepted as Ageratina Spach
- Genus Kyrstenia Neck. accepted as Ageratina Spach
- Genus Lachanostachys Endl.
- Genus Lachnothalamus F.Muell.
- Genus Laciala Kuntze
- Genus Laciniaria Kuntze
- Genus Laciniaria Hill
- Genus Lactucopsis Sch.Bip. ex Vis.
- Genus Laenecia Sch.Bip. ex Walp.
- Genus Laenecia Sch.Bip.
- Genus Lagaseris
- Genus Lagenifera Cass.
- Genus Lagerophora Domin
- Genus Laggera Sch.Bip. ex Walp. accepted as Cotula Tourn. ex L.
- Genus Laggera Sch.Bip. ex Benth.
- Genus Lagoseris Hoffmanns. ex Hoffmanns. & Link
- Genus Lagothamnus Nutt.
- Genus Lalda Bubani
- Genus Lamprochlaena F.Muell.
- Genus Lampsana Mill.
- Genus Lampsana Rupp.
- Genus Lancisia Ponted. ex Adans.
- Genus Langsdorffia Willd. ex Steud.
- Genus Lapeirousia Thunb.
- Genus Lapeyrousia Thunb.
- Genus Lapeyrousia Spreng.
- Genus Lapsyoungia Hiyama
- Genus Lasallea Greene accepted as Aster L.
- Genus Lasianthea Endl.
- Genus Lasiocarphus Pohl ex Baker
- Genus Lasiophyton Hook. & Arn.
- Genus Lasiopus D.Don
- Genus Lasiorhiza Kuntze
- Genus Lasiospermum Fisch.
- Genus Launaea Auct. accepted as Launaea Cass.
- Genus Launaya Kuntze
- Genus Launaya Rchb.
- Genus Launea Endl.
- Genus Laurencellia Neumann
- Genus Laurentia Steud. accepted as Sanvitalia Lam.
- Genus Lavidia Phil.
- Genus Laxanon Raf.
- Genus Laxmannia J.R.Forst. & G.Forst. accepted as Petrobium R.Br.
- Genus Laxmannia Forst.
- Genus Laxopetalum Pohl ex Baker
- Genus Laya Endl.
- Genus Lebianthus K.Schum.
- Genus Leeria Steud.
- Genus Leiodon Shuttlew. ex Sherff
- Genus Lejica Hill ex DC. accepted as Zinnia L.
- Genus Leo Phil. accepted as Helogyne Nutt.
- Genus Leontodon Adans.
- Genus Leontondon Robin
- Genus Leontonix Heynh.
- Genus Leontopodion St.-Lag.
- Genus Lepicline Less.
- Genus Lepidonema Fisch. & C.A.Mey.
- Genus Lepidopappus Moc. & Sessé ex DC.
- Genus Lepidophorum Neck. ex DC.
- Genus Lepidopogon Tausch
- Genus Lepidoseris (H. G. L. Reichenbach) Fourr.
- Genus Leptalea D.Don ex Hook. & Arn.
- Genus Leptica E.Mey. ex DC.
- Genus Leptocarpha Endl.
- Genus Leptoclinium Benth.
- Genus Leptorhynchus F.Muell.
- Genus Leptotis Hoffmanns.
- Genus Lerchia Rchb.
- Genus Lestadia Spach accepted as Laestadia Kunth ex Less.
- Genus Lestibodea Neck.
- Genus Lestibudaea Juss.
- Genus Lettowia H.Rob. & Skvarla
- Genus Leucaeria DC.
- Genus Leucampyx A.Gray accepted as Hymenopappus L'Hér.
- Genus Leucanthemum Burm.
- Genus Leucanthemum Burm. ex Kuntze
- Genus Leuceria Lag. accepted as Leucheria Lag.
- Genus Leuchaeria Less.
- Genus Leucoglossum S.Imai
- Genus Leucophyton Less. accepted as Leucophyta R.Br.
- Genus Leucopodon Benth. & Hook.f.
- Genus Leucopodum Gardner accepted as Chevreulia Cass.
- Genus Leucoseris Fourr.
- Genus Leucostemma D.Don
- Genus Leuctodon Auct.
- Genus Leukeria Endl.
- Genus Leyseria Neck.
- Genus Liathris Müll.Berol.
- Genus Libinhania N.Kilian, Galbany, Oberpr. & A.G.Mill.
- Genus Lidbecka Cothen.
- Genus Lidbekia Spreng.
- Genus Lieberkuehna Rchb.
- Genus Lieberkuehnia Rchb.
- Genus Lieberkuhnia Less.
- Genus Limnocrepis Fourr. accepted as Crepis L.
- Genus Limnogenneton Sch.Bip. accepted as Micractis DC.
- Genus Limnoseris 'Peterm.'
- Genus Limonoseris Peterm. accepted as Crepis L.
- Genus Lioydia Neck.
- Genus Lioydia Neck. ex Raf.
- Genus Lipochaete Benth.
- Genus Lipotriche Less. accepted as Lipochaeta DC.
- Genus Lloydia Benth. & Hook.f.
- Genus Locheria Neck.
- Genus Lomanthus B.Nord. & Pelser
- Genus Lomaxeta Raf.
- Genus Lophactis Raf.
- Genus Lophoclinium Endl.
- Genus Lophoptilon Gagnep.
- Genus Lorantea Steud.
- Genus Loranthea Steud.
- Genus Lorentia Sweet
- Genus Luthera Sch.Bip.
- Genus Lycotis Hoffmanns.
- Genus Lyonetia Willk.
- Genus Lyonettia Endl.
- Genus Macrocephalus Lindl.
- Genus Macropertya Honda
- Genus Macrorrhyncus Brongn.
- Genus Madacarpus Wight
- Genus Madaraglossa Hook.
- Genus Madea Sol. ex DC.
- Genus Maecharanthera Pritz.
- Genus Mahometa DC.
- Genus Maja Wedd.
- Genus Malacocephalus Tausch
- Genus Mallinoa J. Coulter accepted as Ageratina Spach
- Genus Mandonia Sch.Bip. accepted as Hieracium Tourn. ex L.
- Genus Margacola Buckley
- Genus Margaritaria Opiz
- Genus Mariacantha Bubani
- Genus Marizia Gand.
- Genus Marschallia Bartl.
- Genus Martrasia Lag. accepted as Jungia L.f.
- Genus Maruta (Cass.) Cass.
- Genus Mastigophorus Cass. accepted as Nassauvia Comm. ex Juss.
- Genus Matamoria La Llave
- Genus Matricaria Hall. ex Scop.
- Genus Matricarioides (Less.) Spach
- Genus Mausolea Bunge ex Podlech
- Genus Medicasia Willk.
- Genus Medicula Medik.
- Genus Medicusia Moench accepted as Picris L.
- Genus Meistera Cothen.
- Genus Meisteria Scop. accepted as Pacourina Aubl.
- Genus Melanenthera Link
- Genus Melissopsis Sch.Bip. ex Baker
- Genus Menomphalus Pomel
- Genus Metagnanthus Endl.
- Genus Metagnathus Benth. & Hook.f.
- Genus Metaxanthus Walp.
- Genus Metazanthus Meyen
- Genus Meteorina Cass. accepted as Dimorphotheca Vaill. ex Moench
- Genus Meyerafra Kuntze
- Genus Michauxia Neck.
- Genus Micrauchenia Froel.
- Genus Microcoecia Hook. accepted as Delilia Spreng.
- Genus Microcoecia Hook.f.
- Genus Microderis D.Don ex Gand.
- Genus Microlecana Sch.Bip. accepted as Bidens L.
- Genus Microlecane Sch.Bip. accepted as Bidens L.
- Genus Microlonchoides P.Candargy
- Genus Microlophopsis Czerep.
- Genus Micropappus (Sch.Bip.) C.F.Baker
- Genus Microrynchus Sch.Bip.
- Genus Miegia Neck.
- Genus Millefolium Tourn. ex Adans.
- Genus Millefolium Hill
- Genus Millera St.-Lag.
- Genus Millera Cothen.
- Genus Millottia Stapf
- Genus Mimela Phil. accepted as Leucheria Lag.
- Genus Minuriella Tate
- Genus Miradoria Sch.Bip. ex Benth. & Hook.f.
- Genus Mischanthus Coss.
- Genus Mitina Adans.
- Genus Mnesitheon Spreng.
- Genus Moehnia Neck.
- Genus Moerkensteinia Opiz
- Genus Molpadia (Cass.) Cass. accepted as Telekia Baumg.
- Genus Monilifera Adans.
- Genus Monophalacrus Cass. accepted as Tessaria Ruiz & Pav.
- Genus Montagnaea DC. accepted as Montanoa Cerv.
- Genus Montagnea Seem.
- Genus Moritzia Sch.Bip. ex Benth. & Hook.f.
- Genus Morna Lindl.
- Genus Moronoa Hort. ex Kunze
- Genus Morrenia Kunze accepted as Mikania Willd.
- Genus Moscaria Pers.
- Genus Moschifera Molina
- Genus Mosigia Spreng.
- Genus Munrozia Steud.
- Genus Mutisa Cothen.
- Genus Myconia Vent.
- Genus Mycropus Gouan
- Genus Mycroseris Hook. & Arn.
- Genus Myctanthes Raf.
- Genus Myoseris Link accepted as Crepis L.
- Genus Myriogyne Less. accepted as Centipeda Lour.
- Genus Nacrea A.Nelson
- Genus Nahuatlea V.A.Funk
- Genus Namibithamnus H.Rob., Skvarla & V.A.Funk
- Genus Narbalia Raf.
- Genus Nassavia Spreng.
- Genus Nassawia Lag.
- Genus Nassovia Batsch
- Genus Neactelis Raf.
- Genus Nematopus A.Gray
- Genus Nemolepis E.Vilm.
- Genus Neobartlettia R.M.King & H.Rob. accepted as Bartlettina R.M.King & H.Rob.
- Genus Neo-taraxacum Y.R.Ling & X.D.Sun
- Genus Neurelmis Raf.
- Genus Neurochlaena Less.
- Genus Newtonia O.Hoffm.
- Genus Nicolettia Benth. & Hook.f.
- Genus Niebuhria Neck. ex Britton accepted as Wedelia Jacq.
- Genus Niebuhria Neck. accepted as Wedelia Jacq.
- Genus Noccaea Kuntze accepted as Lagascea Cav. (1)
- Genus Nothonia Endl.
- Genus Notisia P.S.Short (1)
- Genus Obaejaca (Cass.) Cass. accepted as Senecio L.
- Genus Obeliscaria Cass. accepted as Ratibida Raf.
- Genus Obeliscotheca Vaill. ex Adans. accepted as Rudbeckia L. (1)
- Genus Obelisteca Raf. accepted as Ratibida Raf.
- Genus Oboejaca Steud.
- Genus Ocneron Raf.
- Genus Odoglossa Raf.
- Genus Odontocarpha Poepp. ex DC. accepted as Gutierrezia Lag.
- Genus Odontophyllum (Less.) Spach
- Genus Odontoptera Cass. accepted as Arctotis L.
- Genus Oederia DC.
- Genus Oegroe Phil.
- Genus Ogcerostylus Cass. accepted as Siloxerus Labill.
- Genus Oligaerion Cass.
- Genus Oliganthemum F.Muell. accepted as Pluchea Cass.
- Genus Oligocarpha Cass. accepted as Brachylaena R.Br.
- Genus Oligodorella Turcz.
- Genus Oligodorum Spach
- Genus Oligoglossa DC.
- Genus Oligotheca
- Genus Onopix Raf.
- Genus Onopyxos Spreng.
- Genus Onopyxus Bubani
- Genus Ooclinium DC. accepted as Praxelis Cass.
- Genus Ophyrosporus Baker
- Genus Opicrina Raf.
- Genus Oporina Less.
- Genus Oporinea W.H.Baxter
- Genus Orchaenactis "coville" ex O.Hoffm.
- Genus Oreodoxa
- Genus Oreophila D.Don accepted as Hypochaeris L.
- Genus Oreoseris DC.
- Genus Oresigonia Willd. ex DC. accepted as Senecioneae Cass.
- Genus Oresigonia Willd. ex Less.
- Genus Orestion Raf.
- Genus Oriastrum Poepp. (1)
- Genus Orsina Bertol. accepted as Inula L.
- Genus Osmia Sch.Bip. accepted as Chromolaena DC.
- Genus Osmitiphyllum Sch.Bip.
- Genus Osteiza Steud.
- Genus Oswaldia Cass. accepted as Clibadium F.Allam. ex L.
- Genus Oswaldia Less. accepted as Clibadium F.Allam. ex L.
- Genus Otoglyphis Pomel
- Genus Oxerostylus Steud.
- Genus Oxiphoeria Hort. ex Dum.Cours.
- Genus Oxodon Steud.
- Genus Oxylaena Benth.
- Genus Oxylobus Moc. ex DC.
- Genus Oxyodon DC. accepted as Chaptalia Vent.
- Genus Oxyphaeria Steud.
- Genus Oxypheria DC.
- Genus Oxyphoeria Dum.Cours.
- Genus Oxytripolium Anonymous
- Genus Pachycentron Pomel
- Genus Pachychaeta Sch.Bip. ex Baker
- Genus Pachyderis Cass. accepted as Pteronia L.
- Genus Pachylepis Less. accepted as Crepis L.
- Genus Pachyrhynchus DC. accepted as Lucilia Cass.
- Genus Pachyrynchus Steud.
- Genus Pachysurus Steetz
- Genus Pachythrix Hook.f.
- Genus Pacquerina Cass. ex Sond.
- Genus Paleolaria Cass. accepted as Palafoxia Lag.
- Genus Panargyrum D.Don accepted as Nassauvia Comm. ex Juss.
- Genus Panargyrus Lag.
- Genus Paneroa E.E.Schill.
- Genus Panetia Fenzl
- Genus Paniopsis Raf.
- Genus Panios Adans.
- Genus Paquerina Cass. accepted as Bellis L. (1)
- Genus Paquirea Panero & S.E.Freire
- Genus Parasenaria J.M.H.Shaw
- Genus Parasyncalathium J.W. Zhang, Boufford & H.Sun (1)
- Genus Pardisium Burm.f.
- Genus Parthenopsis Kellogg
- Genus Passacardoa Wild accepted as Pasaccardoa Kuntze
- Genus Pegolletia Less.
- Genus Penanthes Vell.
- Genus Pentanthus Hook. & Arn.
- Genus Pentanthus Less.
- Genus Pentataxis D.Don
- Genus Penthanthus Steud.
- Genus Pentheriella O.Hoffm. & Muschl.
- Genus Pentiphragma Hook.
- Genus Pereuphora Hoffmanns.
- Genus Pereziopsis Coult. accepted as Onoseris Willd.
- Genus Pericallis Webb & Berthel.
- Genus Perimenium Steud.
- Genus Peripleura Clifford & Ludlow
- Genus Peritris Raf.
- Genus Personaria Lam.
- Genus Perymeniopsis Sch.Bip. ex Klatt
- Genus Petalactella N.E.Br. accepted as Ifloga Cass.
- Genus Petalolepis Cass. accepted as Ozothamnus R.Br.
- Genus Petalolepis Less.
- Genus Petasitis Mill.
- Genus Petrantha DC.
- Genus Petrodavisia Holub
- Genus Petrollinia Chiov. accepted as Inula L.
- Genus Petronia Jungh.
- Genus Peurousea Steud.
- Genus Phacellothrix F.Muell. accepted as Helichrysum Mill. (1)
- Genus Phaenopoda Cass. accepted as Podosperma Labill.
- Genus Phaethusia Raf.
- Genus Phaetusa Schreb.
- Genus Phalacroglossum Sch.Bip.
- Genus Phalacromesus Cass. accepted as Tessaria Ruiz & Pav.
- Genus Pharia Steud.
- Genus Phenopus Hook.f.
- Genus Phialis Spreng. accepted as Trichophyllum Nutt.
- Genus Philaginopsis Walp.
- Genus Phoenicopus Spach
- Genus Phoenicoseris (Skottsb.) Skottsb. accepted as Sonchus L.
- Genus Phoenixopus Rchb.
- Genus Phoenocoma G.Don
- Genus Phoenopus Nyman
- Genus Phrenanthes Wigg.
- Genus Phyllactinia Benth.
- Genus Phyllactis Steud.
- Genus Phyllochilium Cabrera accepted as Chiliophyllum Phil.
- Genus Phyllopappus Walp.
- Genus Phyllostelidium Beauverd
- Genus Phyllymena Blume ex Miq.
- Genus Picardenia Steud.
- Genus Picrina Rchb. ex Steud.
- Genus Pietrosia Nyár. accepted as Andryala L.
- Genus Pietrosia Nyár.
- Genus Pilosanthus Steud.
- Genus Pilosella F.W.Schultz & Sch.Bip.
- Genus Pinardia Neck.
- Genus Pinillosia Ossa
- Genus Piptopogon Cass. accepted as Hypochaeris L.
- Genus Piptostemma (D.Don) Spach
- Genus Piptostemum Steud.
- Genus Pirarda Adans.
- Genus Pitchia Auct.
- Genus Plagion St.-Lag.
- Genus Plancia Neck.
- Genus Platzchaeta Sch.Bip.
- Genus Pleocarpus Walp.
- Genus Pluechea Zoll. & Moritzi
- Genus Pluridens Neck.
- Genus Podia Neck.
- Genus Poecilotriche Dulac
- Genus Pogonura DC. ex Lindl.
- Genus Poilania Gagnep.
- Genus Polatherus Raf.
- Genus Poljakanthema Kamelin
- Genus Poloa DC.
- Genus Polyacantha Hill
- Genus Polyachris Walp.
- Genus Polycalymma F.Muell. ex Sond.
- Genus Polycantha Hill
- Genus Polyclados Phil. accepted as Parastrephia Nutt.
- Genus Polymniastrum Small accepted as Smallanthus Mack.
- Genus Polypappus Nutt.
- Genus Polypteris Nutt.
- Genus Polypteris Less. accepted as Gaillardia Foug.
- Genus Ponaea Bubani
- Genus Pontesia Vell. accepted as Riencourtia Cass.
- Genus Portalesia Meyen
- Genus Postia Boiss. & C.I.Blanche
- Genus Praenanthes Hook.
- Genus Prenanthenia Svent.
- Genus Prenanthos St.-Lag.
- Genus Prenantus Raf.
- Genus Prestinaria Sch.Bip. ex Hochst.
- Genus Prianthes Pritz.
- Genus Priestleya ex DC.
- Genus Prionolepis Poepp. & Endl.
- Genus Proselia D.Don
- Genus Protolepis Steud.
- Genus Psanacetum Neck.
- Genus Pseudalomia Zoll. & Moritzi
- Genus Pseudevax DC. ex Steud.
- Genus Pseudoclinium Kuntze
- Genus Pseudoglossanthis Poljakov (1)
- Genus Pseudomatricaria Domin
- Genus Pseudopegolettia H.Rob., Skvarla & V.A.Funk
- Genus Pseudoseris Baill.
- Genus Psilachenia Benth.
- Genus Psilochenia Nutt. accepted as Crepis L.
- Genus Psilochlaena Walp.
- Genus Psilopogon Phil. accepted as Picrosia D.Don
- Genus Psilosanthus Neck.
- Genus Psilothamnus DC.
- Genus Psilothonna E.Mey. ex DC.
- Genus Psora Hill
- Genus Ptarmica Neck.
- Genus Pterigeron A.Gray
- Genus Pternix Hill
- Genus Pternix Raf.
- Genus Pterochaete Boiss.
- Genus Pterocladis Lamb. ex G.Don
- Genus Pteropappus Pritz.
- Genus Pterophora Neck.
- Genus Pterophorus Vaill. ex Adans.
- Genus Pterophyton Cass. accepted as Verbesina L.
- Genus Pteropogon Fenzl
- Genus Pterosenecio Sch.Bip. ex Baker
- Genus Pterostephanus Kellogg
- Genus Ptilepida Raf.
- Genus Ptileris Raf. accepted as Erechtites Raf.
- Genus Ptilocalais Torr. ex Greene accepted as Microseris D.Don
- Genus Ptilophora (Torr. & A.Gray ex Hook.) A.Gray accepted as Microseris D.Don
- Genus Ptiloria Raf. accepted as Stephanomeria Nutt. (1)
- Genus Ptilosia Tausch
- Genus Ptilurus D.Don accepted as Leucheria Lag.
- Genus Publicaria Deflers
- Genus Pulicaria Gaertn. ex Schreb.
- Genus Pulicarioidea Bunwong, Chantar. & S.C.Keeley
- Genus Pumilo Schltdl.
- Genus Pycarda Less.
- Genus Pycnocomon St.-Lag.
- Genus Pycnocomus Hill
- Genus Pyrarda Cass. accepted as Grangea Adans.
- Genus Pyrethraria Pers. ex Steud.
- Genus Pyrethron St.-Lag.
- Genus Pyrethropsis (1)
- Genus Pyrethrum Scop.
- Genus Pyrethrum Hall.
- Genus Pyretrum Burm.
- Genus Pyropsis Hort. ex Fisch., C.A.Mey. & Avé-Lall.
- Genus Pyrrhocoma Wall.
- Genus Pyrrhopappus A.Rich.
- Genus Pythecoseris Spach
- Genus Raillarda Endl.
- Genus Raillardella Benth.
- Genus Railliarda DC.
- Genus Raoulia Hook.f.
- Genus Ratabida Loudon
- Genus Razumovia Spreng.
- Genus Razumovia Spreng. ex Juss.
- Genus Rea Bertero ex Decne. accepted as Dendroseris D.Don
- Genus Reicharda Cothen.
- Genus Reichardia Roth.
- Genus Resinocaulon Lunell
- Genus Rhagadiolus Zinn
- Genus Rhagadiolus Tourn. ex Scop.
- Genus Rhantherium Sch.Bip.
- Genus Rhea Endl.
- Genus Rhigiothamnus (Less.) Spach
- Genus Rhinactina Willd. accepted as Jungia L.f. (2)
- Genus Rhodactinia Benth. & Hook.f.
- Genus Rhyditospermum Walp.
- Genus Rhynchopappus Dulac accepted as Crepis L.
- Genus Rhynchospermum Reinw.
- Genus Ridan Kuntze
- Genus Ridania Kuntze
- Genus Riddelliinae O.Hoffm.
- Genus Roberta St.-Lag.
- Genus Roccardia Neck. ex Raf.
- Genus Roccardia Neck.
- Genus Rodigia Spreng accepted as Crepis L.
- Genus Roebuckia P.S.Short accepted as Brachyscome Cass.
- Genus Roebuckiella P.S.Short
- Genus Rolfinkia Zenker
- Genus Rosaura Noronha
- Genus Rothia Schreb. accepted as Andryala L.
- Genus Rothia Lam. accepted as Hymenopappus L'Hér.
- Genus Rudbecka Cothen.
- Genus Rudbekia Scop.
- Genus Ruthrum Hill
- Genus Rutidochlamys Sond.
- Genus Rytidea Spreng.
- Genus Sabbata Vell.
- Genus Salmia Post & Kuntze
- Genus Salviastrum Heist. ex Fabr.
- Genus Sanhilaria leandr. ex DC.
- Genus Sanrobertia G.L.Nesom
- Genus Santolina Tourn.
- Genus Santonica Griff.
- Genus Sanvitalia L.
- Genus Scalia Sieber ex Sims
- Genus Scaliopsis Walp.
- Genus Scepinia Neck. ex Cass. accepted as Pteronia L.
- Genus Scepinia Neck.
- Genus Schaeffnera Benth. & Hook.f.
- Genus Schaetzelia Walp.
- Genus Schaetzelia Sch.Bip.
- Genus Schaetzellia Sch.Bip.
- Genus Schaffnera Sch.Bip.
- Genus Schawia Cothen.
- Genus Scheuchleria Heynh.
- Genus Schistocarpia Pritz.
- Genus Schkuhria Roth.
- Genus Schlechtendahlia Benth. & Hook.f.
- Genus Schmidtia Moench accepted as Tolpis Adans.
- Genus Schnittspahnia Sch.Bip.
- Genus Schortia Hort. ex E.Vilm.
- Genus Sciadioseris Kunze
- Genus Sciadoseris Müll.Berol.
- Genus Scirrhophorus Turcz.
- Genus Sckuhria Moench
- Genus Sclerobasis Cass. accepted as Senecio L.
- Genus Scleroleima Hook.f.
- Genus Sclerolepis Monnier accepted as Crepis L.
- Genus Sclerolepis Monn.
- Genus Sclerophyllum Gaudin accepted as Crepis L.
- Genus Scolopospermum Hemsl. accepted as Baltimora L.
- Genus Scolymanthus Willd. ex DC. accepted as Perezia Lag.
- Genus Scytala E.Mey. ex DC.
- Genus Sebastiana Benth. & Hook.f. accepted as Chrysanthellum Rich.
- Genus Sebastiania Bertol.
- Genus Selenocera Zipp. ex Span.
- Genus Selenogyne DC.
- Genus Senecillicacalia Kitam.
- Genus Seneciunculus Opiz
- Genus Seneico Hill
- Genus Sericocarpus Greene (1)
- Genus Seridia Juss. accepted as Centaurea L.
- Genus Seriphidium (Besser) Poljakov
- Genus Seruneum Rumph.
- Genus Setachna Dulac
- Genus Seubertia H.C.Watson
- Genus Shawia Forst. (2)
- Genus Sidneya E.E.Schill. & Panero
- Genus Siegesbecka Cothen.
- Genus Siegesbeckia Steud.
- Genus Silphion St.-Lag.
- Genus Silphiosperma Steetz
- Genus Silybon St.-Lag.
- Genus Simblocline DC. accepted as Diplostephium Kunth
- Genus Simlera Bubani
- Genus Sincalia
- Genus Sinclairea Sch.Bip.
- Genus Siphonogyne Cass.
- Genus Sitilias Raf. accepted as Pyrrhopappus DC.
- Genus Skirrhophorus DC. ex Lindl.
- Genus Skirrophorus Müll.Berol.
- Genus Sobreya Pers. accepted as Enydra Lour.
- Genus Sobrya Pers.
- Genus Sogaligna Steud.
- Genus Soldevilla Lag.
- Genus Solidaster Wehrhahn
- Genus Solivaea Cass. accepted as Soliva Ruiz & Pav.
- Genus Sonchidium Pomel accepted as Sonchus L.
- Genus Sonchos St.-Lag.
- Genus Sonchoseris Fourr. accepted as Sonchus L.
- Genus Sonchustenia Svent.
- Genus Sonnea Greene
- Genus Soyera St.-Lag.
- Genus Soyeria Monn.
- Genus Spadactis Cass. accepted as Atractylis L.
- Genus Spadactis Cass. ex Less.
- Genus Spanioptilon Less.
- Genus Spanotrichum E.Mey. ex DC.
- Genus Spermophylla Neck.
- Genus Sphaeranthoides A.Cunn. ex DC.
- Genus Sphaereupatorium Kuntze
- Genus Sphaerocephala Hill
- Genus Sphaerocephalus Kuntze
- Genus Sphaerocephalus Lag. ex DC.
- Genus Sphaerophyllum Auct.
- Genus Spheranthus Hill
- Genus Spilacron Cass. accepted as Centaurea L.
- Genus Spilanthus L.
- Genus Spinoliva G.Sancho, Luebert & Katinas
- Genus Spiralepis D.Don
- Genus Spiridanthus Fenzl
- Genus Sprunira Sch.Bip. ex Hochst.
- Genus Sprunnera Sch.Bip. ex Walp.
- Genus Sprunnera Sch.Bip.
- Genus Staebe Hill
- Genus Stanfieldia Small
- Genus Starkia Juss. ex Steud.
- Genus Stegonotus Cass. accepted as Arctotis L.
- Genus Steiractis Raf.
- Genus Steirocoma (DC.) Rchb.
- Genus Steiroglossa DC.
- Genus Steleocodon Gilli
- Genus Stelmanis Raf.
- Genus Stematella Wedd. ex Sch.Bip. accepted as Galinsoga Ruiz & Pav.
- Genus Stemmatella Wedd. ex Sch.Bip.
- Genus Stemmatella Wedd. ex Benth.
- Genus Stenogyne Cass.
- Genus Stenotheca Monn.
- Genus Stenotopsis Rydb. accepted as Ericameria Nutt.
- Genus Stephania (Kuntze) Kuntze
- Genus Stephanocoma Less.
- Genus Stephanopholis S.F.Blake (1)
- Genus Steriphe Phil.
- Genus Stictophyllum Edgew.
- Genus Stilpnophytum Less. accepted as Athanasia L.
- Genus Stoechas Gueldenst.
- Genus Strabonia DC.
- Genus Streckera Sch.Bip.
- Genus Streptorhamphus Regel
- Genus Strongyloma DC.
- Genus Strongylomopsis Speg.
- Genus Strumarium Raf.
- Genus Stylesia Nutt. accepted as Bahia Lag.
- Genus Stylopappus Nutt. accepted as Agoseris Raf.
- Genus Succisocrepis Fourr. accepted as Crepis L.
- Genus Sulzeria J. J. Roemer & J. A. Schultes
- Genus Susanna E.Phillips
- Genus Swertia All.
- Genus Swertia Boehm.
- Genus Swertya Steud.
- Genus Swinburnia Ewart
- Genus Sycodium Pomel
- Genus Symphipappus Klatt (1)
- Genus Synarthron Benth. & Hook.f.
- Genus Synarthrum Cass. accepted as Senecio L.
- Genus Syncephalanthus Benth. & Hook.f.
- Genus Synchodendron Bojer ex DC.
- Genus Synosma Raf. ex Britton accepted as Hasteola Raf.
- Genus Synosma Raf.
- Genus Tafalla D.Don accepted as Loricaria Wedd.
- Genus Tagetinae Less.
- Genus Taimingasa (Kitam.) C.Ren & Q.E.Yang
- Genus Tamayoa V.M.Badillo
- Genus Tanaxion Raf.
- Genus Taraxacum Weber
- Genus Teichostemma R.Br.
- Genus Telfordia accepted as Ozothamnus R.Br.
- Genus Terana La Llave
- Genus Tessenia Bubani (1)
- Genus Tetracanthus C.Wright ex Griseb.
- Genus Tetralix Hill
- Genus Tetralyx Hill
- Genus Tetrantha Poit. ex DC. accepted as Riencourtia Cass.
- Genus Tetratrichia Dinter
- Genus Thamnoseris F.Phil.
- Genus Thelosperma Post & Kuntze
- Genus Thelythamnos A.Spreng.
- Genus Theophroseris Andrae
- Genus Therogeron DC.
- Genus Therolepta Raf.
- Genus Thespidium F.Muell. ex Benth.
- Genus Thinobia Phil.
- Genus Thlipsocarpus Kunze accepted as Hyoseris L.
- Genus Thouarsia Vent. ex DC.
- Genus Thrica Gray
- Genus Thrincia Roth. accepted as Leontodon L.
- Genus Thrixia Dulac
- Genus Thuraria [Nutt.]
- Genus Thymophyllum Benth. & Hook.f.
- Genus Thyopsis Ascherson & Graebner
- Genus Thyopsis Wedd.
- Genus Thyrsanthema Neck. ex Kuntze
- Genus Thysanurus O.Hoffm.
- Genus Thysopsis Wedd. accepted as Loricaria Wedd.
- Genus Timanthea Salisb. accepted as Baltimora L.
- Genus Tola Wedd. ex Benth. & Hook.f.
- Genus Tolbonia Kuntze accepted as Calotis R.Br. (1)
- Genus Toxacanthus (2)
- Genus Toxanthus Benth.
- Genus Trachodes D.Don accepted as Sonchus L. (1)
- Genus Tragantha Wallr. ex Endl.
- Genus Traganthes Wallr.
- Genus Tragoceras Spreng. accepted as Isostigma Less.
- Genus Tragopogonodes Kuntze
- Genus Tragopogum St.-Lag.
- Genus Triachne Cass. accepted as Nassauvia Comm. ex Juss.
- Genus Trianthus Hook.f.
- Genus Trichandrum Neck.
- Genus Trichocrepis Vis. accepted as Crepis L.
- Genus Trichoseris Poepp. & Endl.
- Genus Trichoseris Sch.Bip.
- Genus Trichostegia Turcz.
- Genus Trichostephus Cass. accepted as Wedelia Jacq.
- Genus Trigonopterum Steetz ex Andersson
- Genus Trigonotheca Sch.Bip.
- Genus Trimorphoea Benth. & Hook.f.
- Genus Trinacte Gaertn. accepted as Jungia L.f.
- Genus Trinciatella Adans.
- Genus Tripleurocota Starm.
- Genus Tripolion Raf.
- Genus Tripterachaenium Kuntze
- Genus Triptilium DC.
- Genus Trixis Sw. accepted as Clibadium F.Allam. ex L. (1)
- Genus Trixis Lag.
- Genus Trochoseris Poepp. & Endl. ex Endl.
- Genus Tropidolepis Tausch
- Genus Troximon Nutt.
- Genus Troximon [Nutt.]
- Genus Troximum Steud.
- Genus Trychinolepis B.L.Rob. accepted as Ophryosporus Meyen
- Genus Tuberostyles Benth. & Hook.f. (1)
- Genus Tubilium Cass. accepted as Pulicaria Gaertn.
- Genus Tulakenia Raf.
- Genus Tumionella Greene
- Genus Turanecio Hamzaoglu
- Genus Turpinia Lex.
- Genus Tylloma D.Don
- Genus Ubiaea J.Gay ex J.Gay
- Genus Ucacea Cass.
- Genus Uhdea Kunth accepted as Montanoa Cerv.
- Genus Ulina Opiz
- Genus Uniyala H.Rob. & Skvarla
- Genus Unxia Bertero ex Colla
- Genus Unxia Kunth
- Genus Urbanisol Kuntze accepted as Piptocarpha R.Br. (1)
- Genus Urostylis Meisn.
- Genus Vartheimia Benth. & Hook.f.
- Genus Varthemia Caruel
- Genus Vasquesia Phil. accepted as Unxia L.f.
- Genus Vasquesia Rydb.
- Genus Vazquezia Pritz.
- Genus Vea
- Genus Veltis Adans.
- Genus Venatris Raf.
- Genus Vendredia Baill.
- Genus Venegazia Benth. & Hook.f.
- Genus Vernasolis Raf.
- Genus Verutina Cass. accepted as Centaurea L.
- Genus Viborgia Spreng. accepted as Galinsoga Ruiz & Pav.
- Genus Vieria Webb ex Sch.Bip.
- Genus Villanovaea Post & Kuntze
- Genus Villaria DC.
- Genus Viraya Gaudich.
- Genus Virga-aurea Rupp.
- Genus Virgaria Raf. ex DC. accepted as Symphyotrichum Nees
- Genus Virgaurea Rupp.
- Genus Virgilia L'Hér.
- Genus Virletia Sch.Bip. ex Benth. & Hook.f. accepted as Bahia Lag.
- Genus Vittadenia Steud.
- Genus Voigtia Roth
- Genus Vosacan Adans.
- Genus Vosakan Adans.
- Genus Wahlenbergia Schumach. accepted as Enydra Lour.
- Genus Warthemia Boiss.
- Genus Wendelboa Soest accepted as Taraxacum Weber ex F.H.Wigg.
- Genus Wernera Kuntze accepted as Senecioneae Cass.
- Genus Wettsteinia Petr.
- Genus Wibelia Roehl.
- Genus Wiestia Sch.Bip. accepted as Lactuca L. (1)
- Genus Wigandia Neck. ex Less.
- Genus Wigandia Neck.
- Genus Wightia Spreng. ex DC.
- Genus Wikstroemia Spreng. accepted as Mikania Willd.
- Genus Willdenowia Steud.
- Genus Willkommia Sch.Bip. ex Nyman
- Genus Wirtgenia Sch.Bip. accepted as Wedelia Jacq.
- Genus Wollastonia DC. ex Decne.
- Genus Wootonella Standl. accepted as Verbesina L.
- Genus Wootonia Greene
- Genus Wurdackia Moldenke
- Genus Wurmschnittia Benth.
- Genus Xalkitis Raf.
- Genus Xantho J.Rémy
- Genus Xantholepis Willd. ex Less.
- Genus Xantium Gilib.
- Genus Xantophtalmum Sang.
- Genus Xenophonta Benth. & Hook.f.
- Genus Xeranthium Lepech.
- Genus Xeropappus Wall.
- Genus Xerotium Bluff & Fingerhuth
- Genus Xetoligus Raf.
- Genus Xylanthema Neck.
- Genus Xylothermia Greene
- Genus Yermo Dorn
- Genus Youngia Cass. descr. ampl. Babc. & Stebbins
- Genus Zacyntha Adans.
- Genus Zalucania Steud.
- Genus Zarabellia Neck. accepted as Berkheya Ehrh.
- Genus Zazintha Hall.
- Genus Zeyheria A.Spreng. accepted as Geigeria Griess.
