Cynanchum bicampanulatum M. G. Gilbert & P. T. Li

Roots not seen. Stems ascending, to 30 cm, minutely puberulent mainly along 2 sides. Petiole 4-9 mm; leaf blade oblong-ovate, 5.5-7 × 4-4.5 cm, base shallowly cordate, truncate or rounded, margin puberulent, apex acute to subacuminate; basal veins 5-7, lateral veins 4 or 5 pairs. Inflorescences umbel-like; cymules several flowered, separated by very short rachis; peduncle 0.8-1.8 cm, puberulent. Pedicel 5-8 mm, to 12 mm in fruit, puberulent. Sepals oblong, ca. 1.5 × 0.5 mm, apex rounded, almost glabrous. Corolla campanulate, ca. 4 mm; glabrous except for a few stiff hairs inside tube, color not recorded, probably yellow or white; tube ca. 2 × 3 mm; lobes oblong-ovate, ca. 1.7 × 1.5 mm, apex rounded, usually revolute. Corona tube as high as anthers, membranous; lobes inflexed, rounded, fleshy, adnate to corolla tube and to anthers opposite lobes. Anthers square, subgibbous; anther appendages ovate, inflexed over stigma head; pollinia ovoid, ca. 0.2 mm. Stigma head dark, rounded. Young fruit paired, glabrous, beaked fusiform. Fl. Jul.

Gansu, Sichuan (Tachienlu).

* Open fields; 2400-2700 m.