玉树野决明 yu shu ye jue ming

Perennial herbs, 5-12 cm tall. Stems erect, branched, ridged, densely pale yellow villous. Stipules narrowly ovate, 7-12 mm, acute; petiole 3-4 mm; leaflets narrowly oblong, 14-20 × 3-5 mm, densely pale yellow-villous abaxially, especially dense on midrib and margins, glabrous adaxially, base cuneate, apex acute. Racemes lax, terminal, 4-5 cm; flowers in 2-4 whorls; bracts persistent, ovate, 10-12 mm, acute. Calyx 10-13 mm, gibbous. Corolla yellow, 2-2.4 cm, petals subequal. Ovary white villous; stipe ca. 3 mm; ovules 14-16. Legume linear, slightly curved, 5-6.2 × 0.7-0.9 cm, ascending, acute with long beak, undulate along ventral suture. Seeds close to dorsal su­ture, prominent, black, suborbicular, 4-4.5 × 3-3.5 mm; hilum white.

● Riverbanks, ravine beaches; ca. 4200 m. Qinghai.

This is probably a synonym of Thermopsis lanceolata.