小花野葛 xiao hua ye ge

Galactia simaoensis Y. Y. Qian; Pueraria brachycarpa Kurz; P. collettii Prain; P. hirsuta Kurz; P. longicarpa Thuan; P. siamica Craib.

Shrubs, erect or rarely climbing. Stem 1-2.5 m tall. Branches striate, gray pubescent when young, glabrous when old. Stipules triangular-ovate, ca. 7 mm, gray pubescent; termi­nal leaflet rhombic to ovate, 11-24 × 4-12 cm, lateral ones obliquely ovate, gray pubescent on both surfaces. Racemes usually unbranched. Bracts lanceolate, 2-3 mm, pubescent with ± hooked hairs; bracteoles ca. 1 mm. Flowers 4-6(-8) aggre­gated at nodes. Calyx tube 1.5-2.5 mm; teeth 0.5-1.5 mm, gray pubescent. Corolla white, pink, purple, blue, or yellow; stan­dard obovate, 5-8 × 4.5-7 mm, apex emarginate, base clawed, auricles inflexed, without callosities; wings and keel nearly as long as standard, all clawed. Vexillary stamen joined to middle. Ovary silky pubescent along suture; ovules ca. 10. Legumes brownish, oblong, 3.5-6 × 0.5-0.7 cm, flattened, glabrous to thinly pubescent, with oblique stripes, suture thickened. Seeds 5-10, brown or black, ovate, ca. 4 × 3 mm, tuberculate. Fl. May-Jun, fr. Sep-Oct.

Forests, among grasses. Yunnan [Myanmar, Thailand].