纤细土圞儿 xian xi tu luan er

Herbs. Stems twining, slender, sometimes hairy on nodes. Leaves pinnately 5- or 7-foliolate, 5-10 cm, glabrous or shortly pubescent at base of petiole; stipules setiform, 1-3 mm, hairy; petiole 1.8-3 cm; glabrous; leaflets oblong-linear or narrowly lanceolate, 2-4.5 × 0.5-1.2 cm, membranous, both surfaces glabrous, base rounded, apex mucronate. Inflorescences shorter than leaves; peduncle 1.5-2.5 cm. Flowers at top of common pedicel, usually paired, 1.2-1.5 cm. Lateral calyx lobes acumi­nate, reflexed, lower lobes almost triangular. Corolla purple; standard orbicular; keel apex inflexed. Ovary shortly villous. Fl. Aug-Oct.

● About 1500 m. Yunnan (Mengzi).