Compositae source details
Bulletin of the Southern California Academy of Sciences 33(1):
313056
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Erigeron foliosus var. covillei (Greene) accepted as Erigeron breweri var. covillei (Greene) G.L.Nesom (original description)
Erigeron foliosus var. porphyreticus (M.E.Jones) G.R.Compton accepted as Erigeron breweri var. porphyreticus (M.E.Jones) Cronquist (original description)
Erigeron foliosus var. porphyreticus (M.E.Jones) G.R.Compton accepted as Erigeron breweri var. porphyreticus (M.E.Jones) Cronquist (original description)
