Aster frutescens S.Watson accepted as Xylorhiza frutescens (S.Watson) Greene (original description)
Baeria parishii S.Watson accepted as Lasthenia coronaria (Nutt.) Ornduff (original description)
Bahia palmeri S.Watson accepted as Orochaenactis thysanocarpha (A.Gray) Coville (original description)
Erigeron sanctarum S.Watson (original description)
Hofmeisteria crassifolia S.Watson (original description)
Hofmeisteria pubescens S.Watson accepted as Hofmeisteria fasciculata (Benth.) Walp. (original description)
Leptosyne parthenioides var. dissecta S.Watson (original description)
Malperia S.Watson (original description)
Malperia tenuis S.Watson (original description)
Pectis palmeri S.Watson accepted as Pectis rusbyi Greene ex A.Gray (original description)
Pelucha S.Watson (original description)
Pelucha trifida S.Watson (original description)
Perezia palmeri S.Watson accepted as Acourtia palmeri (S.Watson) Reveal & R.M.King (original description)
Perityle deltoidea S.Watson accepted as Perityle californica A.Gray (original description)
Perityle palmeri S.Watson (original description)
Porophyllum crassifolium S.Watson (original description)
Verbesina palmeri S.Watson (original description)