Bigelowia furfuracea Greene accepted as Isocoma menziesii var. decumbens (Greene) G.L.Nesom (original description)
Erigeron angustatus (A.Gray) Greene accepted as Erigeron greenei G.L.Nesom (original description)
Helianthella nevadensis Greene accepted as Helianthella californica subsp. nevadensis (Greene) W.A.Weber (original description)
Layia graveolens Greene accepted as Layia heterotricha (DC.) Hook. & Arn. (original description)
Madia anomala Greene (original description)
Pentachaeta bellidiflora Greene (original description)
Tetradymia stenolepis Greene (original description)
Verbesina hastata (Kellogg) Kellogg ex Curran (original description)