Arnica eradiata (A.Gray) A.Heller accepted as Arnica parryi A.Gray (original description)
Balsamorhiza balsamorhiza (Hook.) A.Heller accepted as Balsamorhiza hookeri (Hook.) Nutt. (original description)
Carduus hallii A.Heller accepted as Cirsium edule Nutt. (original description)
Carduus hookerianus (A.Gray) A.Heller accepted as Cirsium hookerianum Nutt. (original description)
Carduus leiocarpus A.Heller accepted as Cirsium eatonii (A.Gray) B.L.Rob. (original description)
Carduus leiocephalus (D.C.Eaton) A.Heller (original description)
Carduus scariosus (Nutt.) A.Heller accepted as Cirsium scariosum (Poir.) Nutt. (original description)
Carduus wheeleri (A.Gray) A.Heller accepted as Cirsium wheeleri (A.Gray) Petr. (original description)
Carduus wrightii A.Heller accepted as Cirsium wrightii A.Gray (original description)
Coleosanthus nevinii (A.Gray) A.Heller accepted as Brickellia nevinii A.Gray (original description)
Hymenatherum micropoides (DC.) A.Heller accepted as Thymophylla micropoides (DC.) Strother (original description)
Leucelene arenosa A.Heller (original description)
Mesadenia suaveolens (L.) A.Heller (original description)
Taraxacum taraxacum var. glaucescens A.Heller (original description)
Taraxacum taraxacum var. scopulorum (A.Gray) A.Heller accepted as Taraxacum scopulorum (A.Gray) Rydb. (original description)
Verbesina paniculata A.Heller (original description)