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Chinese Plant Names | Family List | Asclepiadaceae | Cynanchum

Cynanchum insulanum (Hance) Hemsl.


Description from Flora of China

Herbs, glabrous except for pubescent nodes, petioles, and leaf margin. Rhizome nodes sometimes forming globose tubers. Stems twining, to 60 cm. Leaves opposite; petiole 1-15 mm; leaf blade oblong-hastate, ovate-triangular, to linear-lanceolate, 1-4 × 0.1-1.5 cm, base rounded to subcordate-hastate, apex acute or short apiculate; lateral veins 5 or 6 pairs. Inflorescences umbel-like, much shorter than leaves, 4- or 5-flowered. Sepals oblong, ca. 1 × 0.5 mm, acute; basal glands 5. Corolla greenish white, subrotate; tube ca. 0.5 mm; lobes ovate-oblong, ca. 2 × 1 mm, acute. Corona tube cupular, thin membranous, ca. 2 mm, longer than gynostegium, longitudinally plicate; anthers nearly square, appendages ovate; pollinia oblong. Stigma head capitate, included within anthers. Follicles lanceolate, 4.5-5 cm × 7-8 mm, with 2 inconspicuous longitudinal ridges, glabrous. Seeds oblong, ca. 3 mm; coma ca. 2 cm.

* Two varieties: 0-100 m. Guangdong, Guangxi, Hainan


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