Carduus brownii Eastw. accepted as Cirsium scariosum Nutt. (original description)
Carduus brownii Eastw. ex A.Heller accepted as Cirsium scariosum Nutt. (original description)
Chrysothamnus gramineus H.M.Hall accepted as Cuniculotinus gramineus (H.M.Hall) Urbatsch, R.P.Roberts & Neubig (original description)
Corethrogyne rigida (Benth.) A.Heller accepted as Corethrogyne filaginifolia (Hook. & Arn.) Nutt. (original description)
Hieracium nudicaule (A.Gray) A.Heller (original description)
Malacolepis A.Heller accepted as Malacothrix DC. (original description)
Malacolepis coulteri A.Heller accepted as Malacothrix coulteri Harv. & A.Gray (original description)
Scorzonella lepidota A.Heller accepted as Microseris sylvatica (Benth.) Sch.Bip. (original description)
Tanacetum compactum H.M.Hall accepted as Sphaeromeria compacta (H.M.Hall) A.H.Holmgren, L.M.Shultz & Lowrey (original description)