Description from Flora of China
Flemingia philippinensis Merrill & Rolfe; Maughania philippinensis (Merrill & Rolfe) H. L. Li; M. prostrata (Roxburgh) Mukerjee.
Subshrubs, erect. Young branchlets trigonous-prismatic, densely pubescent. Leaves digitately 3-foliolate; stipules linear-lanceolate, 0.6-1 cm, hairy, deciduous; petiole 1.5-2.5 cm, densely pubescent; petiolules extremely short, densely pubescent; terminal leaflet oblong or ovate-lanceolate, 4-7 × 1.5-3 cm, thickly papery, sparsely pubescent, basal veins 3, base rounded, apex obtuse, sometimes with small mucro; lateral leaflets slightly smaller, oblique. Raceme axillary, usually 2-2.5 cm, densely pale villous; bracts narrowly ovate-lanceolate; peduncle short. Flowers clustered. Calyx lobes lanceolate, much longer than tube. Corolla purple, subequal to calyx; standard oblong, shortly clawed, inconspicuously auriculate; wings falcate, clawed, both auriculate; keel elliptic, slightly curved, clawed, with acute auricle on one side. Ovary hairy. Legume elliptic, 6-8 × 5-6 mm, pubescent, compressed. Seeds 2, black, suborbicular. Fl. Mar-Jun, fr. May-Oct.
Flemingia prostrata is used medicinally.
Open fields, grasslands; below 100-300 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan [Bangladesh, India, Japan (Ryukyu Islands), Myanmar].