灰叶棘豆 hui ye ji dou

Herbs, 7-10 cm tall, acaulescent, from a short few-branched caudex, grayish green. Stipules oblong, membranous, with trichomes when young but glabrescent, adnate to petiole, distinct. Leaves 2.5-6 cm, 11-21-foliolate; petiole and between leaflets on rachis with glands and with sparse white long tri­chomes when young; leaflet blades oblong, 3-5 × 1-2 mm, abaxially with appressed trichomes, adaxially and margin with appressed sparse white trichomes, base rounded, apex acute. Racemes 3-5-flowered; peduncle shorter than to as long as leaves, with appressed dense white trichomes; bracts linear-oblong, ca. 3 × 1 mm, membranous, with appressed white tri­chomes. Calyx subcampanulate, 5-6 mm, with white and black long trichomes; lobes lanceolate-subulate, ca. 1/2 as long as tube. Corolla purple; standard 6-9 mm, lamina ovate, apex 2-lobed; wings ca. 8 mm, lamina obcordate-oblong, apex emargi­nate; keel ca. 7 mm, beak ca. 0.5 mm. Ovary shortly stipitate, pubescent. Legume unknown. Fl. Jul.

Hilly grassland slopes in alpine areas; 3600-4800 m. Xizang [India].