Helianthus debilis Nutt. [ Helianthus cucumerifolius Torrey & A. Gray]
no HD illustration available (m1)
Helianthus debilis Nutt. [ Helianthus cucumerifolius Torrey & A. Gray] [Compositae]
Addisonia, vol. 16 : t. 535 (1931) [M.E. Eaton]