Description from Flora of China
Crotalaria jinpingensis C. Y. Yang; C. prostrata var. jinpingensis (C. Y. Yang) C. Y. Yang.
Herbs, prostrate. Branches slender, densely spreading pubescent to white appressed pilose. Stipules absent. Leaves simple; petiole very short; leaf blade elliptic to ovate-oblong, 1-3 × 0.5-1 cm, both surfaces with trichomes, base oblique, apex obtuse. Racemes terminal or leaf-opposed, 2-8-flowered; bracts subulate. Pedicel 1-2 mm; bracteoles inserted at base of calyx tube, similar to bracts, densely brown pilose. Calyx 2-lipped, 3-4 mm, parted to base; lobes lanceolate. Corolla yellow; standard suborbicular to elliptic, 4-5 mm, apex obtuse to retuse; wings oblong, ± as long as standard; keel narrowed apically from middle and extended into a long beak included in calyx. Ovary subsessile. Legume cylindric, ca. 1 cm, 10-15-seeded. Fl. May-Aug, fr. Aug-Dec.
Montane grassy wetlands, grassy slopes; 100-1300 m. Yunnan [Bangladesh, Cambodia, India, Indonesia, Myanmar, Nepal, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam].