乡城膨果豆 xiang cheng peng guo dou

Astragalus sanbilingensis H. T. Tsai & T. T. Yu, Bull. Fan Mem. Inst. Biol. 9: 265. 1940.

Plants ca. 30 cm tall, with only white, appressed, flattened hairs 0.02-0.3 mm. Stems glabrous to sparsely hairy. Leaves 2-3.5 cm, subsessile or petiole 0.4-0.6 cm, like rachis loosely hairy; stipules 2-2.5 mm, sparsely hairy at margins; leaflets in 7-9 pairs, 4-9 × 1.5-4 mm, abaxially loosely hairy, adaxially glabrous. Racemes loosely 2-5-flowered; peduncle 2-4 cm, sparsely hairy to glabrous; bracts ca. 2 mm, sparsely hairy. Calyx ca. 5 mm, loosely covered with appressed hairs 0.3-0.5 mm; teeth 2-2.5 mm. Petals purplish; standard orbicular, ca. 9 × 7-8 mm; wings ca. 7 mm; keel 8-8.5 mm. Legumes subsessile, 8-13 mm, ca. 2 mm high and ca. 4 mm wide, with a straight beak ca. 2 mm, 1-locular, loosely covered with short, appressed, white hairs.

● Sichuan, Yunnan.