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Asteraceae
Helianthus
Helianthus occidentalis subsp. occidentalis
Helianthus occidentalis subsp. occidentalis
No common name
Riddell 1836 -
W. J. Med. Phys. Sci. 9: 577 (1836)
Specifications
Images
Synonyms
Helianthus dowellianus
M.A.Curtis
Helianthus occidentalis var. dowellianus
(M.A.Curtis) Torr. & A.Gray
Helianthus illinoensis
Gleason
Helianthus occidentalis var. illinoensis
(Gleason) F.C.Gates