Actinolepis lemmonii A.Gray accepted as Syntrichopappus lemmonii (A.Gray) A.Gray (original description)
Aphanostephus arizonicus A.Gray accepted as Aphanostephus ramosissimus var. humilis (Benth.) B.L.Turner & Birdsong (original description)
Aphanostephus arkansanus var. hallii A.Gray accepted as Aphanostephus skirrhobasis (DC.) Trel. ex Coville & Branner (original description)
Aphanostephus ramosus (DC.) A.Gray accepted as Aphanostephus ramosissimus var. ramosus (DC.) B.L.Turner & Birdsong (original description)
Aster cusickii A.Gray accepted as Symphyotrichum cusickii (A.Gray) G.L.Nesom (original description)
Aster ledophyllus (A.Gray) A.Gray accepted as Eucephalus ledophyllus (A.Gray) Greene (original description)
Aster porteri A.Gray accepted as Symphyotrichum porteri (A.Gray) G.L.Nesom (original description)
Aster scopulorum A.Gray accepted as Ionactis alpina (Nutt.) Greene (original description)
Aster subg. Amellastrum A.Gray (original description)
Aster subg. Biotia (Torr. & A.Gray) A.Gray (original description)
Aster subg. Conyzopsis (Torr. & A.Gray) A.Gray accepted as Symphyotrichum Nees (original description)
Aster subg. Doellingeria (Nees) A.Gray accepted as Doellingeria Nees (original description)
Aster subg. Heleastrum (DC.) A.Gray (original description)
Aster subg. Hesperastrum (A.Gray) A.Gray accepted as Dieteria Nutt. (original description)
Aster subg. Ianthe (Torr. & A.Gray) A.Gray accepted as Ionactis Greene (original description)
Aster subg. Machaeranthera (Nees) A.Gray (original description)
Aster subg. Megalastrum (A.Gray) A.Gray (original description)
Aster subg. Orthomeris (Torr. & A.Gray) A.Gray accepted as Oclemena Greene (original description)
Aster subg. Oxytripolium (DC.) A.Gray accepted as Symphyotrichum subg. Astropolium (Nutt.) Semple (original description)
Aster watsonii A.Gray accepted as Erigeron watsonii (A.Gray) Cronquist (original description)
Chaenactis suffrutescens A.Gray (original description)
Chaetopappa asteroides var. imberbis A.Gray accepted as Chaetopappa imberbis (A.Gray) G.L.Nesom (original description)
Chaetopappa modesta (DC.) A.Gray (original description)
Chaetopappa parryi A.Gray (original description)
Erigeron asperugineus (D.C.Eaton) A.Gray (original description)
Erigeron eatonii A.Gray (original description)
Erigeron inornatus (A.Gray) A.Gray (original description)
Erigeron ochroleucus var. hirtellus (DC.) A.Gray accepted as Erigeron ochroleucus Nutt. (original description)
Erigeron peucephyllus A.Gray accepted as Erigeron linearis (Hook.) Piper (original description)
Erigeron salsuginosus (Richardson ex R.Br.) A.Gray (original description)
Erigeron scaposus var. cuneifolius A.Gray accepted as Erigeron glacialis (Nutt.) A.Nelson (original description)
Erigeron tener (A.Gray) A.Gray (original description)
Erigeron utahensis A.Gray (original description)
Eupatorium mygindifolium A.Gray accepted as Ageratina mygindaefolia (A.Gray) R.M.King & H.Rob. (original description)
Fleischmannia schaffneri A.Gray accepted as Hofmeisteria schaffneri (A.Gray) R.M.King & H.Rob. (original description)
Greenella A.Gray accepted as Gutierrezia Lag. (original description)
Greenella arizonica A.Gray accepted as Gutierrezia arizonica (A.Gray) M.A.Lane (original description)
Gundlachia A.Gray (original description)
Gundlachia domingensis (Spreng.) A.Gray (original description)
Haplopappus greenei A.Gray accepted as Ericameria greenei (A.Gray) G.L.Nesom (original description)
Haplopappus integrifolius Porter ex A.Gray accepted as Pyrrocoma integrifolia (Porter ex A.Gray) Greene (original description)
Haplopappus mollis A.Gray (original description)
Haplopappus watsonii A.Gray accepted as Ericameria watsonii (A.Gray) G.L.Nesom (original description)
Laphamia lemmonii A.Gray accepted as Perityle lemmonii (A.Gray) J.F.Macbr. (original description)
Laphamia lemmonii var. pedata A.Gray (original description)
Machaeranthera subg. Hesperastrum (A.Gray) A.Gray (original description)
Solidago bigelovii A.Gray accepted as Solidago wrightii A.Gray (original description)
Solidago wrightii A.Gray (original description)
Townsendia arizonica A.Gray accepted as Townsendia incana Nutt. (original description)
Townsendia florifera (Hook.) A.Gray accepted as Townsendia florifer (Hook.) A.Gray (original description)
Townsendia glabella A.Gray (original description)
Townsendia parryi var. alpina A.Gray (original description)
Townsendia scapigera var. ambigua A.Gray (original description)
Townsendia watsonii A.Gray (original description)
Vernonia lettermanni Engelm. ex A.Gray (original description)