弥勒杭子梢 mi le hang zi shao

Shrubs, ca. 1.5 m tall. Young branches distinctly quadran­gular, sparsely shortly appressed hairy. Petiole abaxially angled, often narrowly winged along both sides, 2-4 cm, with dense appressed short hairs; stipels absent; leaflets ovate to elliptic, terminal one 3-8 × 1.5-4.5 cm, abaxially sparsely appressed or ascending hairy, adaxially glabrous, base obtuse or rounded, apex obtuse or retuse and mucronulate. Racemes ± densely flowered, 3-5 cm, often paniculate; rachis with ± dense ap­pressed short hairs. Pedicels 6-8 mm, with ± dense appressed or ascending short hairs. Calyx with dense appressed short hairs; tube ca. 2 mm; lobes narrowly triangular, 3-4 mm. Co­rolla purple; standard elliptic, 13-14 mm, apex obtuse; wings ca. 12 mm, clawed at base; keel incurved, 16-17 mm, clawed at base. Ovary ca. 2.5 mm; style incurved, 11-11.5 mm. Legume ovoid, 6-9 × 3-5 mm, appressed shortly hairy, apex obtuse.

● SE Yunnan.

This species is known only from the type specimen collected at Mile in SE Yunnan.

Although winged petioles and distinctly angled young branches are also observed in Campylotropis trigonoclada and C. henryi, this species is easily recognized by the quadrangular branches and lack of glandular hairs in the inflorescences.