腾冲杭子梢 teng chong hang zi shao

Shrubs or shrublets, ca. 1 m tall. Young branches sparsely appressed or ascending shortly hairy. Petiole 0.3-2.5 cm, densely appressed or ascending hairy; stipels absent; leaflets obovate to oblong, terminal one 1.5-3 × 1-2 cm, abaxially sparsely shortly appressed hairy, adaxially glabrous, base ob­tuse or rounded, apex retuse and mucronulate. Racemes axillary or terminal, 2.5-11 cm, densely flowered on long peduncle; ra­chis and pedicels densely shortly ascending hairy. Pedicels 1.5-3 mm. Calyx with ± dense appressed short hairs; tube 2-2.5 mm; lobes narrowly triangular, 2.5-3.5 mm. Corolla purple; standard obovate, 10-10.5 mm, apex obtuse; wings ca. 10.5 mm, clawed at base; keel shallowly incurved, 12.5-13 mm, clawed at base. Ovary narrowly ovoid, ca. 2 mm, shortly ap­pressed hairy; style incurved, ca. 7.2 mm. Legume obliquely obovoid, ca. 5.5 × 3 mm, shortly ascending hairy, apex obtuse. Seeds purplish brown, reniform.

● Sparse forests on mountain slopes; 1900-2300 m. Yunnan.