二花棘豆 er hua ji dou

Herbs, 2.5-3 cm tall, acaulescent, from a multiheaded cau­dex, loosely caespitose. Stipules with a triangular-ovate dis­tinct part, herbaceous, with sparse white and black trichomes, very shortly adnate to petiole, basally connate. Leaves 1.5-5 cm, 7-13-foliolate; petiole and rachis with sparse long tri­chomes; leaf­let blades oblong, 2.5-4 × ca. 1.5 mm, both sur­faces with spreading dense long trichomes, base rounded, apex acute. Ra­cemes 2- or 3-flowered; peduncle 2-6 cm, subequal to or longer than leaves, with dense long trichomes; bracts narrowly lan­ceolate. Calyx subcylindric, 6-7 mm, with black and white long trichomes; lobes as long as tube. Corolla white; standard 7-9 mm, lamina broadly ovate, apex emarginate; wings slightly shorter than standard, apex emarginate; keel slightly shorter than wings, beak ca. 0.5 mm. Legume stipitate; stipe ca. 4 mm; body oblong-cylindric when young, densely white vil­lous. Fl. Jun-Jul, fr. Jul-Aug.

● Alpine meadows, along rivers; ca. 5000 m. Xizang.