长叶排钱树 chang ye pai qian shu

Desmodium longipes Craib, Bull. Misc. Inform. Kew 1910: 20. 1910; D. tonkinense Schindler.

Shrubs, ca. 1 m tall. Branchlets densely brown pubescent. Petiole ca. 3 mm; terminal leaflet blade lanceolate or oblong, 13-20 × 3.7-6 cm, lateral ones obliquely ovate, 3-4 × 1.5-2 cm, abaxially densely brown soft hairy, adaxially sparsely pu­bescent or glabrescent, lateral veins 8-15 on each side of mid­vein, distinctly reticulate veined. Flowers (5-)9-15, enclosed by pair of leaflike bracts; bracts obliquely ovate, 2.5-3.5 × 2-2.7 cm. Pedicel 4-6 mm. Calyx 4-5 mm, white tomentose. Co­rolla white or pale yellow; standard obovate, 3-9 mm, clawed; wings 7-8 mm, base auriculate, clawed; keel arcuate, 8-8.5 mm. Ovary 3.5-4 mm, 7- or 8-ovuled. Legume narrowly ob­long, 0.8-1.5 cm × ca. 3.5 mm, lower suture more deeply un­dulate, upper suture slightly undulate, both surfaces downy, 2-5-jointed; articles broadly oblong to nearly quadrangular. Seed broadly elliptic, ca. 3 × 2.3 mm. Fl. Aug-Sep, fr. Oct-Nov.

Thickets, dense forests; 900-1000 m. Guangdong, Guangxi, S Yunnan [Cambodia, Laos, Myanmar, Thailand, Vietnam].