色花棘豆 se hua ji dou

Oxytropis algida Bunge.

Herbs, 4-10 cm tall, acaulescent, arising from a shortly branched caudex. Stipules ovate-lanceolate, 6-7 mm, adnate to petiole at base, connate nearly to middle. Leaves 3-6(-8) cm, 17-25(-29)-foliolate; petiole and rachis spreading villous with short trichomes; leaflet blades oblong-elliptic to oblong-ovate, 3-8(-12) × 2-5 mm, both surfaces sericeous. Racemes capitate to ovoid, dense, many flowered; peduncle as long as leaves, with appressed to spreading trichomes; bracts linear-lanceolate, as long as to slightly shorter than calyx tube, with white tri­chomes, sometimes with rufous trichomes intermixed. Calyx campanulate, 5-7 mm, semispreading villous with short black and longer white trichomes; lobes linear-subulate, as long as or longer than tube. Corolla pinkish violet; standard 0.9-1.4 cm, lamina broadly ovate to orbicular, apex slightly emarginate; wings as long or nearly as long as standard, lamina oblong; keel shorter than standard and wings, beak 1.5-2 mm. Legume sub­sessile; body oblong-ellipsoid, 7-12 × ca. 4 mm, inflated, thinly leathery, ± 2-locular, spreading villous with white long tri­chomes, beak 1-1.5 mm. Fl. and fr. Jul-Aug.

Stony slopes and valleys in high mountain regions; 2200-3200 m. Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbeki­stan].