Amphiachyris fremontii var. spinosa A.Nelson accepted as Amphipappus fremontii var. spinosus (A.Nelson) Ced.Porter (original description)
Chaenactis paleolifera A.Nelson accepted as Chaenactis carphoclinia A.Gray (original description)
Dyssodia cupulata A.Nelson accepted as Thymophylla pentachaeta (DC.) Small (original description)
Dyssodia fusca A.Nelson accepted as Thymophylla acerosa (DC.) Strother (original description)
Dyssodia thurberi (A.Gray) A.Nelson accepted as Thymophylla pentachaeta var. belenidium (DC.) Strother (original description)
Enceliopsis (A.Gray) A.Nelson (original description)
Enceliopsis argophylla (D.C.Eaton) A.Nelson (original description)
Enceliopsis grandiflora (M.E.Jones) A.Nelson accepted as Enceliopsis covillei (A.Nelson) S.F.Blake (original description)
Enceliopsis nudicaulis (A.Gray) A.Nelson (original description)
Enceliopsis nutans (Eastw.) A.Nelson accepted as Encelia nutans Eastw. (original description)
Enceliopsis tuta A.Nelson accepted as Enceliopsis nudicaulis (A.Gray) A.Nelson (original description)
Gaillardia pedunculata A.Nelson accepted as Gaillardia arizonica A.Gray (original description)
Hymenoclea fasciculata var. patula A.Nelson (original description)
Lebetina cooperi (A.Gray) A.Nelson accepted as Adenophyllum cooperi (A.Gray) Strother (original description)
Lebetina cupulata A.Nelson (original description)
Lebetina porophylla A.Nelson (original description)
Lebetina porophylloides (A.Gray) A.Nelson accepted as Adenophyllum porophylloides (A.Gray) Strother (original description)
Lebetina speciosa (A.Gray) A.Nelson accepted as Adenophyllum speciosum (A.Gray) Strother (original description)