线苞棘豆 xian bao ji dou

Herbs, 6-11 cm tall, acaulescent, from a much-branched multiheaded caudex. Stipules with a linear-lanceolate free part, 7-9 mm, herbaceous, densely pale yellow sericeous with long trichomes, shortly adnate to petiole. Leaves 5-10 cm, 15-21-foliolate; petiole and rachis with spreading dense pale yellow long trichomes; leaflet blades oblong to ovate-lanceolate, 7-10 × 3-4 mm, both surfaces densely pale yellow sericeous with long trichomes. Racemes dense to lax, many flowered; pedun­cle as long as to slightly longer than leaves, with spreading dense trichomes; bracts linear, as long as calyx. Calyx campan­ulate, 5-7 mm, with appressed dense white and black tri­chomes; lobes linear-subulate, as long as tube. Corolla purple; standard 6-8 mm, lamina broadly ovate, apex emarginate; wings slightly shorter than standard, apex emarginate; keel slightly shorter than wings, beak ca. 0.3 mm. Ovary shortly stipitate. Legume unknown. Fl. Jun.

● Dry slopes and alluvial fans; ca. 4200 m. Xizang (Sogxian).