FLORA OF VIETNAM Fabaceae (Papilionoideae) Derris sp.
Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Comm., Mo O O O Vill., Ruc Lan Valley, 17°40′52″N, 105°55′09″E, 260-270 m. Edges and in secondary broad-leaved woodlands from stream banks to foot of shale mts. Rare.
Small woody vine, up to 3-5 m long or more; sepals brownish-violet, petals white. Rare.