Ambrosia cheiranthifolia A.Gray (original description)
Baccharis emoryi A.Gray accepted as Baccharis salicina Torr. & A.Gray (original description)
Bahia bigelovii A.Gray accepted as Picradeniopsis bigelovii (A.Gray) B.G.Baldwin (original description)
Bahia rubella A.Gray accepted as Eriophyllum wallacei (A.Gray) A.Gray (original description)
Bidens bigelovii A.Gray (original description)
Burrielia anthemoides A.Gray accepted as Lasthenia coronaria (Nutt.) Ornduff (original description)
Burrielia platycarpha A.Gray accepted as Lasthenia platycarpha (A.Gray) Greene (original description)
Calycadenia fremontii A.Gray (original description)
Calycadenia pauciflora A.Gray (original description)
Coreopsis calliopsidea (DC.) A.Gray (original description)
Erigeron bigelovii A.Gray (original description)
Eupatorium berlandieri A.Gray accepted as Ageratina occidentalis (Hook.) R.M.King & H.Rob. (original description)
Eupatorium bigelovii A.Gray accepted as Chromolaena bigelovii (A.Gray) R.M.King & H.Rob. (original description)
Eupatorium schiedeanoides Sch.Bip. ex A.Gray accepted as Fleischmannia pycnocephala (Less.) R.M.King & H.Rob. (original description)
Eupatorium spinaciifolium A.Gray (original description)
Hemiptilium A.Gray accepted as Stephanomeria Nutt. (original description)
Hemiptilium bigelovii A.Gray accepted as Stephanomeria exigua subsp. exigua Nutt. (original description)
Hemiptilium schottii A.Gray accepted as Stephanomeria exigua subsp. exigua Nutt. (original description)
Hemizonia virgata A.Gray accepted as Holocarpha virgata (A.Gray) D.D.Keck (original description)
Laphamia cinerea A.Gray accepted as Perityle cinerea (A.Gray) A.M.Powell (original description)
Linosyris arborescens A.Gray accepted as Ericameria arborescens (A.Gray) Greene (original description)
Parthenium argentatum A.Gray (original description)
Senecio parryi A.Gray (original description)
Stevia berlandieri A.Gray (original description)
Thelesperma subsimplicifolium A.Gray (original description)
Townsendia wrightii (A.Gray) A.Gray accepted as Xylorhiza wrightii (A.Gray) Greene (original description)