毛序棘豆 mao xu ji dou

Oxytropis shensiana Ulbrich.

Herbs, 10-20 cm tall, acaulescent, from a multiheaded cau­dex. Branches with white long stout trichomes and yellowish or glandular trichomes. Stipules with a lanceolate free part, mem­branous, basally adnate to petiole, apex acute. Leaves 2.5-6(-8) cm; leaflets verticillate, in (2-)7-12 whorls, 3 or 4 blades per whorl and some also arranged on opposite sides of rachis; leaf­let blades ovate to narrowly lanceolate, 2-8 × 1-2 mm. Ra­cemes capitate or lax, few to many flowered; peduncle (6-)10-20 cm, thick, erect, slightly to greatly longer than leaves; bracts ovate, 4-5 mm, with long trichomes, apex acute. Calyx cylin­dric, 9-10 mm, with white long trichomes; lobes lanceolate-linear, 2.5-5 mm. Corolla basally almost white and apically blue; standard 1.5-2 × 0.7-0.9 cm, lamina broadly ovate, apex rounded to emarginate; wings 1.5-1.7 cm; keel ca. 1.4 cm, beak 1.5-2.5 mm. Legume stipitate; body ovoid-oblong, leathery, with white long trichomes. Fl. May, fr. Aug.

● Hillsides, roadsides, grasslands; 800-2000 m. Gansu, Hebei, Henan, Shaanxi, Shanxi.