蒙古野决明 meng gu ye jue ming

Thermopsis grubovii Czefranova; T. hirsutissima Czefran­ova; T. junatovii Czefranova; T. lanceolata R. Brown var. mon­golica (Czefranova) Q. R. Wang & X. Y. Zhu; T. mongolica subsp. schischkinii (Czefranova) Yakovlev; T. saurensis Chang Y. Yang; T. schischkinii Czefranova.

Perennial herbs, 20-30(-40) cm tall. Stems erect, solitary or branched, ridged, white pubescent. Leaflets linear-lanceolate to linear, 3-7 × 0.6-2.2 cm, densely white appressed pubescent on both surfaces, especially dense and also with long hairs abax­ially, base cuneate, apex acute. Racemes lax, terminal, 5-18 cm; bracts narrowly ovate, 1.2-2(-3) cm, densely silky, acuminate. Calyx 1.4-2 cm, slightly gibbous. Corolla yellow. Ovary densely silky, shortly stipitate; ovules 9-14. Legume linear, straight or slightly curved, 4-8 × 0.7-1 cm, white pubescent, spreading horizontally at right angles to axis, acute. Seeds 5-12, at central line of valve, prominent, dark brown, reniform, 3.5-4.5 × 3-3.5 mm, spotted; hilum white. Fl. Jun-Jul, fr. Aug-Sep.

Prairies, gravel deserts, saline beaches. Gansu, Nei Mongol, N Xinjiang [Kazakhstan, Mongolia, Russia (W Siberia)].

This is probably a synonym of Thermopsis lanceolata.