Rudbeckia serotina f. annulata (Clute) Fernald & B.G.Schub.

, Rhodora 50: 176 (1948). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:223792-2
Publication
Rhodora; Journal of the New England Botanical Club. Cambridge, MA
Collation
50: 176
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Rudbeckia hirta var. annulata Clute, Amer. Bot. (Binghamton) 19: 134 (1913).