Malouetia asiatica Siebold & Zuccarini, Abh. Math. Phys. Cl. Königl. Bayer. Akad. Wiss. 4: 163. 1846; Melodinus cavaleriei H. Léveillé; Trachelosper-mum asiaticum var. brevisepalum (C. K. Schneider) Tsiang; T. divaricatum var. brevisepalum C. K. Schneider; T. foetidum (Matsumura & Nakai) Nakai; T. gracilipes J. D. Hooker; T. gracilipes var. cavaleriei (H. Léveillé) Tsiang; T. gracilipes var. hupehense Tsiang & P. T. Li; T. jasminoides (Lindley) Lemaire subsp. foetidum Matsu-mura & Nakai; T. lanyuense C. E. Chang; T. siamense Craib.

Lianas woody, to 10 m, glabrous or pubescent when young. Petiole 2-10 mm; leaf blade elliptic, narrowly ovate, or subobovate, 2-10 X 1-5 cm, membranous to papery, base acute or broadly cuneate, apex obtuse to acute, rarely caudate; lateral veins 6-10 pairs. Cymes terminal and axillary. Sepals appressed to corolla tube, 1.5-3 mm, puberulent to glabrous outside, apex obtuse to subacute; basal glands 10. Corolla white, tube 6-10 mm, dilated at throat, glabrous or puberulent inside facing stamens; lobes obovate, as long as tube. Stamens inserted at or near corolla throat; anther apex exserted or slightly so; disc scales shorter than to as long as ovary. Ovary glabrous. Follicles linear, 10-30 cm X 3-5 mm. Seeds oblong, 2-2.5 cm, coma to 3.5 cm. Fl. Apr-Jul, fr. Aug-Nov. 2n = 20.

Dense or open montane forests, brushwoods, often clinging to trees; 100-1000 m. Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan [India, Japan, Korea, Thailand].