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FOC | Family List | FOC Vol. 16 | Asclepiadaceae | Tylophora

29. Tylophora flexuosa R. Brown, Prodr. 460. 1810.

小叶娃儿藤 xiao ye wa er teng

Asclepias tenuissima Roxburgh; A. tetrapetala Dennstedt; Hoya flexuosa (R. Brown) Sprengel; Hoyopsis dielsii H. Léveillé; Tylophora carnosa Wallich ex Wight; T. dielsii (H. Léveillé) Hu; T. hoyopsis H. Léveillé; T. tenuis Blume; T. tenuissima (Roxburgh) Wight & Arnott; T. tetrapetala (Dennstedt) Suresh; Vincetoxicum flexuosum (R. Brown) Kuntze.

Lianas slender, to 2.5 m. Young stems puberulent along 1 side. Petiole 5-10 mm, puberulent; leaf blade ovate to ovate-oblong or oblong-lanceolate, 1-8 × 0.8-4.5 cm, thin papery, glabrous or sometimes ciliate, glabrous or sometimes puberulent along midvein, base cuneate to rounded, apex acute or obtuse, sometimes apiculate. Inflorescence rachis simple to much branched, 3-10 cm; cymules densely to laxly racemelike. Pedicel ca. 1.5 cm. Sepals ovate, glabrous; glands 5. Corolla white, rotate, ca. 5 mm in diam., glabrous outside, pubescent inside; lobes ovate-oblong or ovate-triangular. Corona lobes ovoid, pouched. Anthers short, appendages extending beyond stigma head; pollinia globose, horizontal to suberect. Stigma head semiglobose. Follicles lanceolate in outline, 4-8 cm × 6-10 mm, glabrous. Seeds ovate, 6-8 mm; coma 1.5-3.5 cm. Fl. Apr-Dec, fr. Jul-Dec. 2n = 22.

Open woods, thickets; 100-1000 m. Guangdong, Guangxi, Guizhou, Hainan, Shaanxi, Taiwan, Yunnan [Cambodia, India, Indonesia, Malaysia, Myanmar, Sri Lanka, Thailand, Vietnam].


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