地花黄耆 di hua huang qi

Plants ca. 30 cm tall, glabrous with exception of leaflets and inner side of calyx teeth. Stems ascending to procumbent, 1-1.2 mm thick. Leaves 6-11 cm; stipules 6-10 mm, free; peti­ole 1.5-2.5 cm; leaflets in 7-11 pairs, ± elliptic, 6-13 × 2-7 mm, when young covered abaxially with ± spreading asym­metrically bifurcate to basifixed white hairs 0.7-1.5 mm, very soon glabrescent and later completely glabrous, apex rounded to subacute, mostly with a minute cusp. Racemes densely 5-8-flowered; peduncle in axil of lower leaves only, 2.5-6 cm; bracts 6-10 mm. Bracteoles 1-2 mm, soon falling. Calyx 8-9 mm; teeth unequal, 2.5-3 mm, glabrous outside, with black basifixed hairs on inner side. Petals ?purplish; standard nar­rowly obovate, 13-14 × ca. 4 mm; wings 12-13 mm; keel 12-13 mm. Legumes (unripe) with a stipe ca. 10 mm, ellipsoid-curved, ca. 20 mm, ca. 6 mm high, laterally compressed, acutely keeled ventrally, deeply grooved dorsally.

● About 2300 m. Gansu, Qinghai.

This is a little known species and is provisionally assigned to this section.