Megapterium missouriense (Sims) Spach [ Oenothera missouriensis Sims]
no HD illustration available (m1)
Megapterium missouriense (Sims) Spach [ Oenothera missouriensis Sims] [Onagraceae]
Allg. Teutsch. Gart.-Mag., ser. 2, vol. 5 : t. 14 (1820)