细茎旋花豆(原变种) xi jing xuan hua dou (yuan bian zhong)

Leaflets strigose on both surfaces. Upper 2 calyx teeth connate into an entire lip. Ovary with ca. 4 mm slender stipe and cup-shaped disk at base. Style and filaments coiled inward for 1 turn in upper part. Fl. Sep.

Open forests, mountain slopes; ca. 1400 m. Xizang, SW Yunnan [Bhutan, Nepal].