拉德京棘豆 la de jing ji dou

Herbs, 5-30 cm tall, acaulescent, from a multiheaded cau­dex. Stipules with a lanceolate free part, membranous, with appressed white trichomes, adnate to petiole, margin ciliate. Leaves 4-12 cm, 11-19-foliolate; petiole and rachis white seri­ceous; leaflet blades lanceolate, lanceolate-oblong, or elliptic, 4-10 × 1.5-4 mm, both surfaces with appressed white tri­chomes, base obtuse to rounded, apex acute. Racemes many flowered, elongating after anthesis; peduncle 10-15 cm, ca. 2 × as long as leaves, with appressed sparse white trichomes api­cally intermixed with black trichomes; bracts linear-lanceolate, longer than pedicels, with appressed sparse white trichomes. Calyx broadly cylindric, 6-7 mm, with appressed sparse white and black trichomes; lobes lanceolate, 1.5-2 mm. Corolla pale yellow or sometimes pale purple; standard 1.2-1.5 cm, lamina broadly ovate, apex rounded; wings slightly shorter than stan­dard, apex rounded; keel 1-1.2 cm, apically spotted, beak ca. 1 mm. Legume sessile, oblong-ovoid, 1.4-1.7 × 0.4-0.6 cm, erect-ascending, 1-locular, with appressed white and black tri­chomes. Fl. and fr. Jul-Aug.

Stony hillsides, valley bottoms; 1500-2700 m. Xinjiang [Mongo­lia, Russia].