洮河岩黄耆 tao he yan huang qi

Herbs, perennial, ca. 40 cm tall. Stems several, slender, erect, pubescent. Stipules lanceolate, 1.5-2 cm, connate farther than middle. Leaves 12-16 cm, 17-19-foliolate; leaflet blades narrowly ovate or ovate, 20-24 × 7-9 mm, abaxially and adax­ially tomentose. Racemes dense, with 10-20 flowers; bracts narrowly lanceolate, 7-11 × 0.7-1 mm; peduncle as long as or longer than leaves. Pedicel 2-3.5 mm; bracteoles 0.4-0.7 mm. Calyx campanulate, 8-10 mm, pilose; teeth lanceolate, adaxial teeth slightly shorter than tube, abaxial teeth slightly longer than tube. Corolla dark purple; standard obovate, 1.8-2 cm; wings as long as standard; keel ca. 8 mm longer than standard. Ovary appressed pubescent; ovules 3 or 4. Legume unknown. Fl. Jun-Jul.

● Riverbanks; ca. 3000 m. SW Gansu.

This species was treated by X. Y. Zhu et al. (Legumes China, 416. 2007) as a synonym of Hedysarum tanguticum.