Description from Flora of China
Lasiobema delavayi (Franchet) A. Schmitz.
Lianas, woody. Branches slender; young branches angulate, puberulent; tendrils in pairs, slightly compressed, brownish or grayish pubescent. Stipules caducous; petiole 2-4.5 cm, puberulent; leaf blade suborbicular, 5-8 × 4-8 cm, subleathery, abaxially throughout puberulent when young, only veins puberulent when old, adaxially glabrous, primary veins 7-9, base shallowly or deeply cordate, broadly bifid to 1/3-2/5; lobes ovate, with acute, acuminate, or obtuse apices. Inflorescence an axillary raceme or terminal panicle composed of 2 or 3 racemes 6-20 cm, many flowered; bracts and bracteoles linear, 2-4 mm, brushlike in young inflorescences; inflorescence rachis, pedicels, and calyx grayish or brownish pubescent. Pedicel 3-4 mm. Flower buds ellipsoid, ca. 2 mm. Calyx mouth 5-toothed; receptacle ca. 3 mm; calyx lobes 5, persistent, triangular. Petals white, subequal, broadly elliptic, ca. 5 mm, cucullate, tapering into a short claw. Fertile stamens 3; filaments ca. 5 mm; anthers oblong. Staminodes 2 or 3, ca. 1.5 mm. Floral disk fleshy, swollen, lobed. Ovary shortly stalked, oblique, puberulent, becoming glabrous; style incurved, stout; stigma small, truncate. Legume subelliptic or oblong, compressed, 2-7 × 1.5-2 cm; valves leathery, thin. Seeds 2-5, suborbicular, compressed. Fl. Sep-Nov, fr. Nov-Dec.
● Open forests, disturbed hillsides. Yunnan.