长萼棘豆 chang e ji dou

Herbs, 7-9 cm tall, shortly caulescent, from a multiheaded caudex. Stipules membranous, densely white tomentose, free from petiole, basal half connate, apex acute. Leaves 3-5 cm, 7-15-foliolate; petiole and rachis densely white tomentose; leaflet blades oblong to ovate-lanceolate, 8-12 × 4-6 mm, both sur­faces densely white tomentose. Racemes subcompact, many flowered; peduncle shorter than to as long as leaves, densely white tomentose; bracts linear, almost as long as calyx. Calyx 1-1.2 cm, with dense white and black long trichomes; lobes linear, 7-9 × ca. 3 mm, ca. 2 × as long as tube. Corolla purple; standard 1.8-2 cm, lamina subelliptic and outside white or pale yellow sericeous; wings slightly shorter than keel, outside seri­ceous or glabrous; keel outside densely sericeous. Legume stipitate; body ovoid, 7-9 × 4-6 mm, with dense white and black short trichomes. Fl. and fr. Aug-Sep.

● Valley grasslands; 4500-5000 m. Xizang (Lhasa).