Herbs glabrous throughout; stems green, clinging, twining, or hanging from trees or rocks, to 2 m. Petiole 2-3 mm; leaf blade ovate-elliptic, 1.5-3 × ca. 1 cm, base cuneate or obtuse, apex acute to rounded; lateral veins 4 or 5 pairs. Pseudumbels to 9-flowered; peduncle ca. 2 mm. Pedicel ca. 1 mm. Sepals ovate, ciliate. Corolla yellowish white, throat thickened, villous; lobes ovate-triangular, ca. 1 × 1 mm. Corona lobes anchor-shaped, stalked, apex linear, 2-cleft, spreading and recurved at both ends, with a small rounded papilla in sinus of divaricate arms. Anther appendage acute; pollinia oblong. Ovaries glabrous. Stigma head subapiculate. Follicles lanceolate or linear-lanceolate, 5-8 cm × ca. 4 mm, smooth. Seeds ovate-oblong; coma ca. 2.5 cm. Fl. Apr-May.

Mixed woods. Guangdong, Guangxi, Hainan [Vietnam]