Acarna caespitosa Willd. accepted as Atractylis cancellata L. (original description)
Acarna gummifera Willd. accepted as Carlina gummifera (L.) Less. (original description)
Acarna lancea Willd. accepted as Atractylodes ovata (Thunb.) DC. (original description)
Acarna macrocephala Willd. accepted as Carlina gummifera (L.) Less. (original description)
Acarna macrophylla Willd. accepted as Carlina macrophylla (Desf.) DC. (original description)
Acarna ovata Willd. accepted as Atractylodes ovata (Thunb.) DC. (original description)
Achillea anthemoides Willd. (original description)
Achillea auriculata Willd. (original description)
Achillea compacta Willd. accepted as Achillea coarctata Poir. (original description)
Achillea gerberi Willd. accepted as Aspilia foliacea (Spreng.) Baker (original description)
Achillea micrantha Willd. accepted as Achillea arabica (original description)
Achillea microphylla Willd. accepted as Verbesina montevidensis Spreng. (original description)
Achillea pectinata Willd. accepted as Aspilia reflexa (Sch.Bip. ex Baker) Baker (original description)
Achillea pilosa Willd. (original description)
Achillea pubescens Willd. accepted as Achillea nobilis L. (original description)
Achillea teretifolia Willd. (original description)
Amellus annuus Willd. accepted as Amellus alternifolius subsp. alternifolius Roth (original description)
Anacyclus alexandrinus Willd. accepted as Flaveria bidentis (L.) Kuntze (original description)
Anthemis australis Willd. accepted as Anthemis arvensis subsp. incrassata (Loisel.) Nyman (original description)
Anthemis carpatica Waldst. & Kit. ex Willd. accepted as Anthemis cretica subsp. carpatica (Willd.) Grierson (original description)
Anthemis coronopifolia Willd. (original description)
Anthemis discoidea (All.) Willd. accepted as Cota tinctoria (L.) J.Gay (original description)
Anthemis marschalliana Willd. (original description)
Anthemis monantha Willd. accepted as Cota monantha (Willd.) Oberpr. & Greuter (original description)
Anthemis nicaeensis Willd. accepted as Anthemis arvensis subsp. incrassata (Loisel.) Nyman (original description)
Anthemis occidentalis Willd. accepted as Heliopsis buphthalmoides (Jacq.) Dunal (original description)
Anthemis pontica Willd. accepted as Anthemis cretica L. (original description)
Anthemis praecox Link ex Willd. accepted as Anthemis cretica subsp. sibthorpii (Griseb.) Govaerts (original description)
Anthemis pubescens Willd. accepted as Anacyclus clavatus (Desf.) Pers. (original description)
Anthemis tomentosa Willd. (original description)
Apargia alpina Willd. accepted as Scorzoneroides pyrenaica (Gouan) Holub (original description)
Apargia coronopifolia (Desf.) Willd. accepted as Picris asplenioides L. (original description)
Apargia crispa (Vill.) Willd. accepted as Leontodon crispus Vill. (original description)
Apargia dubia Willd. accepted as Leontodon hispidus subsp. hastilis (L.) Corb. accepted as Leontodon hispidus subsp. hastilis (L.) Pawłowska (original description)
Apargia hieracioides (L.) Willd. accepted as Picris hieracioides L. (original description)
Apargia hispanica Willd. accepted as Picris hispanica (Willd.) P.D.Sell (original description)
Apargia hispida (L.) Willd. accepted as Leontodon hispidus L. (original description)
Apargia taraxaci (L.) Willd. accepted as Scorzoneroides autumnalis subsp. borealis (Ball) Greuter (original description)
Apargia tuberosa (L.) Willd. accepted as Leontodon tuberosus L. (original description)
Apargia variegata (Lam.) Willd. accepted as Hypochaeris variegata (Lam.) Baker (original description)
Apargia villarsii Willd. accepted as Leontodon hirtus L. (original description)
Arctium bardana Willd. accepted as Arctium lappa L. (original description)
Arctium lappa Willd. accepted as Arctium lappa L. (original description)
Arctotis hypochondriaca Willd. accepted as Arctotheca calendula (L.) Levyns (original description)
Arctotis lyrata Willd. accepted as Arctotis incisa Thunb. (original description)
Arnica rotundifolia Willd. accepted as Bellis rotundifolia (Desf.) Boiss. & Reut. (original description)
Arnopogon Willd. accepted as Urospermum Scop. (original description)
Arnopogon asper (L.) Willd. accepted as Urospermum picroides (L.) Scop. ex F.W.Schmidt (original description)
Arnopogon capensis (Jacq.) Willd. accepted as Urospermum picroides (L.) Scop. ex F.W.Schmidt (original description)
Arnopogon dalechampii (L.) Willd. accepted as Urospermum dalechampii (L.) Scop. ex F.W.Schmidt (original description)
Arnopogon picroides (L.) Willd. accepted as Urospermum picroides (L.) Scop. ex F.W.Schmidt (original description)
Artemisia afra Jacq. ex Willd. (original description)
Artemisia alpina Pall. ex Willd. (original description)
Artemisia canescens Willd. accepted as Artemisia tournefortiana Rchb. (original description)
Artemisia caucasica Willd. accepted as Artemisia alpina Pall. ex Willd. (original description)
Artemisia dentata Willd. accepted as Artemisia alba Turra (original description)
Artemisia fragrans Willd. (original description)
Artemisia frigida Willd. (original description)
Artemisia gallica Willd. accepted as Artemisia caerulescens subsp. gallica (Willd.) (original description)
Artemisia herbacea Ehrh. ex Willd. accepted as Artemisia abrotanum L. (original description)
Artemisia indica Willd. (original description)
Artemisia laciniata Willd. (original description)
Artemisia lanata Willd. accepted as Artemisia pedemontana Balb. (original description)
Artemisia nutans Willd. (original description)
Artemisia orientalis Willd. accepted as Artemisia incana (L.) Druce (original description)
Artemisia procera Willd. accepted as Artemisia abrotanum L. (original description)
Artemisia repens Pall. ex Willd. accepted as Artemisia austriaca Jacq. (original description)
Artemisia salina Willd. accepted as Artemisia maritima L. (original description)
Artemisia salsoloides Willd. (original description)
Artemisia saxatilis Waldst. & Kit. ex Willd. accepted as Artemisia alba Turra (original description)
Artemisia sieversiana Ehrh. ex Willd. (original description)
Artemisia splendens Willd. (original description)
Artemisia taurica Willd. (original description)
Artemisia tenuifolia Willd. accepted as Eupatorium capillifolium (Lam.) Small ex Porter & Britton (original description)
Aster acris Willd. (original description)
Aster amplexicaulis Muhl. ex Willd. (original description)
Aster caucasicus Willd. accepted as Kemulariella caucasica (Willd.) Tamansch. (original description)
Aster conyzoides Willd. accepted as Sericocarpus conyzoides Nees (original description)
Aster cordifolius Muhl. ex Willd. (original description)
Aster coridifolius Michx. ex Willd. (original description)
Aster cornifolius Muhl. ex Willd. accepted as Doellingeria infirma (Michx.) Greene (original description)
Aster dracunculoides Willd. accepted as Symphyotrichum lanceolatum (Willd.) G.L.Nesom (original description)
Aster elegans Willd. accepted as Eurybia spectabilis (Sol. ex Aiton) G.L.Nesom (original description)
Aster floribundus Willd. accepted as Symphyotrichum novi-belgii (L.) G.L.Nesom (original description)
Aster fragilis Willd. accepted as Symphyotrichum racemosum (Elliott) G.L.Nesom (original description)
Aster fruticulosus Willd. accepted as Felicia fruticosa subsp. fruticosa (L.) G.Nicholson (original description)
Aster heterophyllus Willd. accepted as Symphyotrichum cordifolium (L.) G.L.Nesom (original description)
Aster humilis Willd. accepted as Doellingeria infirma (Michx.) Greene (original description)
Aster laevigatus Willd. accepted as Symphyotrichum laeve (L.) Á.Löve & D.Löve (original description)
Aster lanceolatus Willd. accepted as Symphyotrichum lanceolatum (Willd.) G.L.Nesom (original description)
Aster mutabilis Willd. accepted as Symphyotrichum versicolor (Willd.) G.L.Nesom (original description)
Aster paniculatus Willd. (original description)
Aster pilosus Willd. accepted as Symphyotrichum pilosum (Willd.) G.L.Nesom (original description)
Aster prenanthoides Muhl. ex Willd. accepted as Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom (original description)
Aster pulchellus Willd. accepted as Erigeron caucasicus subsp. venustus (Botsch.) Grierson (original description)
Aster recurvatus Willd. accepted as Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve (original description)
Aster sagittifolius Wedem. ex Willd. accepted as Symphyotrichum cordifolium (L.) G.L.Nesom (original description)
Aster salignus Willd. accepted as Symphyotrichum ×salignum (Willd.) G.L.Nesom (original description)
Aster serotinus Willd. accepted as Symphyotrichum novi-belgii (L.) G.L.Nesom (original description)
Aster solidagineus Michx. ex Willd. accepted as Sericocarpus linifolius (L.) Britton, Sterns & Poggenb. (original description)