Actinella chrysanthemoides A.Gray (original description)
Actinella rusbyi A.Gray accepted as Hymenoxys rusbyi (A.Gray) Cockerell (original description)
Arnica nevadensis A.Gray (original description)
Arnica sachalinensis (Regel) A.Gray (original description)
Artemisia bolanderi A.Gray accepted as Artemisia cana subsp. bolanderi (A.Gray) G.H.Ward (original description)
Artemisia rigida (Nutt.) A.Gray (original description)
Artemisia tridentata var. angustifolia A.Gray accepted as Artemisia tridentata subsp. tridentata Nutt. (original description)
Artemisia wrightii A.Gray accepted as Artemisia carruthii Alph.Wood ex Carruth. (original description)
Baeria affinis (Nutt.) A.Gray accepted as Lasthenia coronaria (Nutt.) Ornduff (original description)
Baeria anthemoides (Nutt.) A.Gray accepted as Lasthenia coronaria (Nutt.) Ornduff (original description)
Baeria clevelandii A.Gray (original description)
Baeria coronaria (Nutt.) A.Gray accepted as Lasthenia coronaria (Nutt.) Ornduff (original description)
Baeria curta A.Gray accepted as Lasthenia californica DC. ex Lindl. (original description)
Baeria gracilis var. aristosa A.Gray accepted as Lasthenia californica DC. ex Lindl. (original description)
Baeria gracilis var. paleacea A.Gray accepted as Lasthenia californica DC. ex Lindl. (original description)
Baeria macrantha (A.Gray) A.Gray accepted as Lasthenia californica subsp. macrantha (A.Gray) R.Chan (original description)
Baeria macrantha var. pauciaristata A.Gray accepted as Lasthenia californica subsp. macrantha (A.Gray) R.Chan (original description)
Baeria mutica (Nutt.) A.Gray accepted as Hymenoxys mutica (Nutt.) Torr. & A.Gray (original description)
Baeria tenella (Nutt.) A.Gray accepted as Lasthenia tenella (Nutt.) Greene (original description)
Baeria uliginosa var. tenera A.Gray accepted as Lasthenia minor (DC.) Ornduff (original description)
Bahia chrysanthemoides (A.Gray) A.Gray accepted as Hymenothrix dissecta (A.Gray) B.G.Baldwin (original description)
Bahia gilliesii A.Gray accepted as Picradeniopsis multiflora (Hook. & Arn.) B.G.Baldwin (original description)
Bahia neomexicana (A.Gray) A.Gray accepted as Picradeniopsis multiflora (Hook. & Arn.) B.G.Baldwin (original description)
Bahia nudicaulis A.Gray accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Bahia oblongifolia (A.Gray) A.Gray accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Bahia schkuhrioides (Link & Otto) A.Gray accepted as Schkuhria schkuhrioides (Link & Otto) Thell. (original description)
Bahia woodhousei (A.Gray) A.Gray accepted as Picradeniopsis woodhousei (A.Gray) Rydb. (original description)
Bidens heterophylla var. wrightii A.Gray accepted as Bidens aurea (Aiton) Sherff (original description)
Cacalia chiapensis (Hemsl.) A.Gray accepted as Digitacalia chiapensis (Hemsl.) Pippen (original description)
Cacalia floridana A.Gray accepted as Arnoglossum floridanum (A.Gray) H.Rob. (original description)
Cacalia penduliflora A.Gray (original description)
Cacalia schaffneri A.Gray accepted as Odontotrichum schaffneri (A.Gray) Rydb. (original description)
Cacalia tabularis (Hemsley) A.Gray accepted as Psacalium tabulare Rydb. (original description)
Cacaliopsis A.Gray (original description)
Cacaliopsis nardosmia (A.Gray) A.Gray (original description)
Chaenactis fremontii A.Gray (original description)
Chaenactis nevii A.Gray (original description)
Chaenactis thysanocarpha A.Gray accepted as Orochaenactis thysanocarpha (A.Gray) Coville (original description)
Cnicus altissimus var. discolor (Muhl. ex Willd.) A.Gray accepted as Cirsium discolor (Muhl. ex Willd.) Spreng. (original description)
Cnicus altissimus var. filipendulus (A.Gray) A.Gray accepted as Cirsium engelmannii Rydb. (original description)
Cnicus americanus (A.Gray) A.Gray accepted as Cirsium scariosum var. americanum (A.Gray) D.J.Keil (original description)
Cnicus eatonii A.Gray accepted as Cirsium eatonii (A.Gray) B.L.Rob. (original description)
Cnicus grahamii A.Gray accepted as Cirsium grahamii A.Gray (original description)
Cnicus hallii A.Gray accepted as Cirsium edule Nutt. (original description)
Cnicus ochrocentrus (A.Gray) A.Gray accepted as Cirsium ochrocentrum subsp. ochrocentrum A.Gray (original description)
Cnicus wheeleri A.Gray accepted as Cirsium wheeleri (A.Gray) Petr. (original description)
Coreopsis schaffneri A.Gray accepted as Bidens schaffneri (A.Gray) Sherff (original description)
Cosmos seemannii (Sch.Bip.) A.Gray (original description)
Dyssodia appendiculata Sch.Bip. ex A.Gray (original description)
Dyssodia cancellata (Cass.) A.Gray accepted as Adenophyllum porophyllum var. cancellatum (Cass.) Strother (original description)
Dyssodia integrifolia A.Gray accepted as Comaclinium montanum (Benth.) Strother (original description)
Dyssodia montana (Benth.) A.Gray accepted as Comaclinium montanum (Benth.) Strother (original description)
Dyssodia squamosa A.Gray accepted as Adenophyllum squamosum (A.Gray) Strother (original description)
Eatonella A.Gray (original description)
Eatonella congdonii A.Gray accepted as Monolopia congdonii (A.Gray) B.G.Baldwin (original description)
Eatonella nivea (D.C.Eaton) A.Gray (original description)
Erigeron arizonicus A.Gray (original description)
Erigeron lemmonii A.Gray (original description)
Erigeron neomexicanus A.Gray (original description)
Erigeron oreganus A.Gray (original description)
Eriophyllum ambiguum (A.Gray) A.Gray (original description)
Eriophyllum caespitosum var. achilleoides (DC.) A.Gray accepted as Eriophyllum lanatum var. achillioides (DC.) Jeps. (original description)
Eriophyllum caespitosum var. grandiflorum (A.Gray) A.Gray accepted as Eriophyllum lanatum var. grandiflorum (A.Gray) Jeps. (original description)
Eriophyllum caespitosum var. integrifolium (Hook.) A.Gray accepted as Eriophyllum lanatum var. integrifolium (Hook.) Smiley (original description)
Eriophyllum caespitosum var. latifolium (Benth.) A.Gray accepted as Eriophyllum lanatum (Pursh) J.Forbes (original description)
Eriophyllum caespitosum var. leucophyllum (DC.) A.Gray accepted as Eriophyllum lanatum var. leucophyllum (DC.) W.R.Carter & C.F.Newc. (original description)
Eriophyllum confertiflorum (DC.) A.Gray (original description)
Eriophyllum confertiflorum var. laxiflorum A.Gray accepted as Eriophyllum confertiflorum var. confertiflorum (DC.) A.Gray (original description)
Eriophyllum confertiflorum var. trifidum (Nutt.) A.Gray (original description)
Eriophyllum gracile (Hook. & Arn.) A.Gray accepted as Eriophyllum lanatum var. integrifolium (Hook.) Smiley (original description)
Eriophyllum lanosum (A.Gray) A.Gray (original description)
Eriophyllum multicaule (DC.) A.Gray (original description)
Eriophyllum nubigenum Greene ex A.Gray (original description)
Eriophyllum pringlei A.Gray (original description)
Eriophyllum wallacei (A.Gray) A.Gray (original description)
Eriophyllum watsonii A.Gray accepted as Eriophyllum lanatum var. integrifolium (Hook.) Smiley (original description)
Filago depressa A.Gray accepted as Logfia depressa (A.Gray) Holub (original description)
Gnaphalium arizonicum A.Gray accepted as Pseudognaphalium arizonicum (A.Gray) Anderb. (original description)
Gnaphalium bourgovii A.Gray accepted as Pseudognaphalium bourgovii (A.Gray) Anderb. (original description)
Gnaphalium pannosum A.Gray accepted as Gnaphalium panniforme S.F.Blake (original description)
Gochnatia glomeriflora A.Gray accepted as Acourtia glomeriflora (A.Gray) Reveal & R.M.King (original description)
Gochnatia hypoleuca (DC.) A.Gray (original description)
Greenella discoidea A.Gray accepted as Gutierrezia wrightii A.Gray (original description)
Gymnolomia calva (Sch.Bip.) A.Gray accepted as Tithonia calva Sch.Bip. (original description)
Gymnolomia encelioides A.Gray (original description)
Gymnolomia ovata A.Gray accepted as Viguiera ovata (A.Gray) S.F.Blake (original description)
Gymnolomia platylepis A.Gray accepted as Tithonia longiradiata (Bertol.) S.F.Blake (original description)
Haplopappus monactis A.Gray accepted as Ericameria cooperi (A.Gray) H.M.Hall (original description)
Helenium thurberi A.Gray (original description)
Helianthella argophylla (D.C.Eaton) A.Gray accepted as Enceliopsis argophylla (D.C.Eaton) A.Nelson (original description)
Helianthella microcephala (A.Gray) A.Gray (original description)
Helianthella nudicaulis (A.Gray) A.Gray accepted as Enceliopsis nudicaulis (A.Gray) A.Nelson (original description)
Helianthella quinquenervis (Hook.) A.Gray (original description)
Helianthus parishii A.Gray accepted as Helianthus nuttallii subsp. parishii (A.Gray) Heiser (original description)
Hemizonia paniculata A.Gray accepted as Deinandra paniculata (A.Gray) Davidson & Moxley (original description)
Hemizonia wrightii A.Gray accepted as Deinandra kelloggii (Greene) Greene (original description)
Hieracium cynoglossoides var. nudicaule A.Gray accepted as Hieracium nudicaule (A.Gray) A.Heller (original description)
Hieracium greenii A.Gray (original description)
Hieracium lemmonii A.Gray accepted as Hieracium crepidispermum Fr. (original description)
Hieracium parishii A.Gray (original description)