Urceola micrantha (Wall. ex G. Don) D. J. Middleton

The bark and roots are used for the treatment of infantile paralysis, rheumatalgia, injury, and fractures.

Lianas to 50 m. Stems 10-30 cm in diam.; branches often lenticellate. Petiole puberulent, 1.5-3 cm; leaf blade elliptic or narrowly ovate, 5-15 X 1.5-6 cm, base obtuse, apex narrowly acuminate, glabrous; lateral veins 3-7 pairs. Cymes paniculate, compact, to 9 cm; peduncle pubescent. Sepals ovate, ca. 0.8-1 mm, apex subacute. Corolla pink, lobes oblong, as long as to longer than tube, to 2 mm, 1-toothed near base. Filaments ca. 0.5 mm; disc ringlike. Ovary pilose. Pistil head conical. Follicles narrowly ovoid, 9-23 X (0.4-)1-1.2 cm, base dilated. Seeds oblong, 2-4 cm, coma ca. 4 cm. Fl. Mar-Jun, fr. Jun-Dec.

Fujian, Guangdong, Guangxi, Hainan, Sichuan, Taiwan, Xizang, Yunnan [India, Indonesia, Japan (Ryukyu Islands), Laos, Malaysia, Nepal, Thailand, Vietnam]

Mixed forests, brushwoods; 300-1000 m.

Echites micrantha Wallich ex G. Don, Gen. Hist. 4: 75. 1837; Ecdysanthera brachiata A. de Candolle; E. micrantha (Wallich ex G. Don) A. de Candolle; E. multiflora King & Gamble; E. utilis Hayata & Kawakami; Parabarium micranthum (Wallich ex G. Don) Pierre; P. multiflorum (King & Gamble) Lý; P. spireanum Pierre; P. utile (Hayata & Kawakami) Lý; P. utile var. kerrii Lý.

Urceola micrantha is a plant species in the genus Urceola. It is a shrub widespread across much of East Asia, Southeast Asia, and the Himalayas.

In Taïwan, it is used in folk medicine as an analgesic, antiphlogistic and spasmolytic agent.

The species contains proanthocyanidin B2, proanthocyanidin A1 and proanthocyanidin A2.