Actinea acaulis subsp. arizonica (Greene) S.F.Blake accepted as Tetraneuris acaulis var. arizonica (Greene) K.F.Parker (original description)
Actinea acaulis subsp. lanigera (Daniels) S.F.Blake (original description)
Agoseris gracilens subsp. greenei (A.Gray) S.F.Blake accepted as Agoseris aurantiaca (Hook.) Greene (original description)
Aster commutatus subsp. crassulus (Rydb.) S.F.Blake accepted as Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom (original description)
Aster commutatus subsp. polycephalus (Rydb.) S.F.Blake accepted as Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom (original description)
Chrysopsis viscida subsp. ciliata (A.Nelson) S.F.Blake accepted as Heterotheca fulcrata var. fulcrata (Greene) Shinners (original description)
Gaillardia arizonica subsp. pringlei (Rydb.) S.F.Blake accepted as Gaillardia arizonica A.Gray (original description)
Ptiloria tenuifolia subsp. myrioclada (D.C.Eaton) S.F.Blake accepted as Stephanomeria tenuifolia (Raf.) H.M.Hall (original description)