绵果棘豆 mian guo ji dou

Oxytropis komei Saposhnikow.

Herbs, 1-3 cm tall, acaulescent, arising from a prostrate or diffuse many-branched caudex, with persistent stipules and petioles. Stipules with a triangular-lanceolate distinct part, ca. 1 cm, scarious, with appressed sparse trichomes, adnate to peti­ole, basal half connate. Leaves 2-5 cm, 5-11-foliolate; petiole and rachis with appressed trichomes; leaflet blades ovate to lan­ceolate, 5-10 × 2-4 mm, conduplicate, both surfaces with appressed trichomes. Racemes compact, 2-4-flowered; pedun­cle shorter than leaves, with spreading trichomes; bracts lanceo­late, 6-10 mm, with cottonlike trichomes. Calyx cylindric, 1.2-1.5 cm, with spreading white and appressed black trichomes; lobes linear-lanceolate, 4-5 mm. Corolla purple to bluish pur­ple; standard ca. 2.5 cm, lamina ovate, apex emarginate; wings 1.7-2.5 cm, apex slightly emarginate; keel 1.5-1.7 cm, beak 2-3 mm. Legume sessile, ovoid, 1.5-2.2 × ca. 1 cm, thickly leath­ery, 2-locular, white pannose, septum narrow, adaxial suture grooved, beak 1.5-5 mm. Fl. Jul, fr. Aug. 2n = 16 + 0-3B.

Hillsides, gravelly alpine areas; ca. 2600 m. Xinjiang [Mongolia, Russia].