膨果豆 peng guo dou

Astragalus turgidocarpus K. T. Fu, Bull. Bot. Res., Harbin 2(1): 127. 1982.

Plants up to 30 cm tall, covered with only white hairs 0.02-0.3 mm. Stems 15-40 cm, diffusely prostrate to as­cending, in basal part glabrous, in upper part sparsely to loosely spreading hairy. Leaves 3-5.5 cm; stipules 3-4 mm, ciliate; petiole 0.3-1 cm, with rachis hairy like stem; leaflets in 5-7 pairs, 5-9 × 2.5-5 mm, abaxially loosely covered with tangled subappressed hairs, adaxially glabrous. Racemes 2-4-flowered; peduncle 3-7 cm, hairy like stem; bracts ca. 4 mm, ciliate. Bracteoles 0.3-1 mm. Calyx 8-10 mm, sparsely to loosely hairy; teeth 4.5-6 mm. Petals purple; standard suborbicular, 15-19 × 10-13 mm; wings ca. 12 mm; keel 14-15 mm. Legumes with a stipe ca. 5 mm, 25-30 mm, ca. 5 mm high and wide, with a slender beak, 2-locular, loosely hairy.

● 900-2100 m. Gansu, Sichuan.