Stems twining, to 2 m, pubescent along 1 line. Leaves opposite; petiole 1.5-5 cm, adaxially puberulent; leaf blade ovate-lanceolate, 4-11 × 2.5-8 cm, abaxially distinctly paler, membranous, minutely pilose, sometimes glabrescent, base strongly auriculate, basal lobes rounded, apex gradually acuminate. Inflorescences umbel-like or racemelike; peduncle 2-4 cm, puberulent to subglabrous; cymules up to 8-flowered. Pedicel 3-5 mm, puberulent on 1 side. Sepals ovate-lanceolate, ca. 1 × 0.7 mm, puberulent; basal glands 5. Corolla white, rotate; lobes oblong, 2-3 × ca. 1 mm, minutely puberulent inside. Corona slightly shorter than corolla, deeply 5-lobed; lobes oblong-lanceolate, narrower toward base, apex rounded to subacute, sometimes slightly 3-toothed, slightly fleshy, adaxially grooved with lateral longitudinal ridges, adaxial appendages minute or absent. Gynostegium short stipitate. Anther appendages ovate, erect; pollinia oblong. Stigma head slightly convex. Follicles lanceolate, 8-9 × ca. 1 cm, with 2 ridges or angles. Seeds ovate, ca. 6 × 3 mm; coma ca. 3 cm. Fl. Jun-Oct, fr. Aug-Dec.
More
A vine. It has milky sap. It keeps growing from year to year. It has tufts of cylinder shaped roots. These are greyish-black on the outside. They are 8 mm across. The leaves are broadly sword shaped and 7-10 cm long by 4-8 cm wide. They taper to the tip and are heart shaped at the base. They have a grey covering on both surfaces. The flowers are white. They are in clusters in the axils of leaves. The fruit are long follicles 8 cm long by 1 cm wide. The seeds are oval.
It is a temperate plant. It grows in south-western China on grassy hillsides between 1,400-2,800 m altitude. In Sichuan and Yunnan.
Home
