Oxypetalum coeruleum (D. Don ex Sweet) Decne. [ Tweedia versicolor Hook.]
no HD illustration available (m1)
Oxypetalum coeruleum (D. Don ex Sweet) Decne. [ Tweedia coerulea D. Don ex Sweet] [Asclepiadaceae]
W. Curtis, Bot. Mag., vol. 65 [ser. 2, vol. 12]: t. 3630 (1839) [W.H. Fitch]