Tylophora silvestris Tsiang

Lianas to 2 m. Branches pale gray, glabrous. Petiole ca. 5 mm, puberulent; leaf blade narrowly oblong-lanceolate, 5-9 × 1-1.2 cm, leathery, glabrous except for midvein, base rounded, apex acute; basal veins 3, lateral veins ca. 4 pairs. Inflorescences extra-axillary, lax, up to as long as leaves, rachis usually branched, zigzag; cymules lax, racemelike; peduncle to 6 cm. Pedicel 1-2(-6) mm, pubescent. Sepals oblong, ca. 1.5 × 1 mm, pubescent, ciliate; glands 5. Corolla purple, occasionally pale yellow, rotate; lobes ovate, 2.5-3.5 × 1.4-2 mm, obtuse. Corona lobes ovate, pouched. Anthers nearly square, appendages white, rounded; pollinia globose, horizontal. Ovaries glabrous. Stigma head flat with raised center. Follicles lanceolate in outline, ca. 7 cm × 5 mm, apex acuminate, glabrous. Fl. Mar-May, fr. Jun-Sep.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang.

* Forests, thickets, 300-2400 m.

Tylophora silvestris là một loài thực vật có hoa trong họ La bố ma. Loài này được Tsiang miêu tả khoa học đầu tiên năm 1936.

贵州娃儿藤（学名：Tylophora silvestris）是夹竹桃科娃儿藤属的植物。分布在中国大陆的安徽、江西、云南、四川、广东、湖南、江苏、贵州、浙江等地，生长于海拔500米的地区，多生于山地密林中及路旁旷野地，目前尚未由人工引种栽培。