华南杜仲藤 hua nan du zhong teng

Ecdysanthera quintaretii Pierre, Rev. Cultures Col. 11: 228. 1902; E. micrantha Quintaret, not (Wallich ex G. Don) A. de Candolle; E. parameroides Tsiang; Parabarium chunianum Tsiang; P. hainanense Tsiang; P. handelianum Tsiang; P. quintaretii (Pierre) Pierre.

Lianas to 10 m, glabrous except for inflorescences. Branches dark brown when young, dark gray when older. Petiole ca. 5 mm; leaf blade glaucous at first, deep lustrous green adaxially, pale green and with scattered black papillae abaxially, elliptic, narrowly elliptic, ovate, or obovate, 4.5-11 X 1.6-3 cm, apex short acuminate; lateral veins 5-7 pairs. Cymes paniculate, compact, terminal and axillary, 2- or 3-branched, as long as or longer than leaves. Sepals narrowly ovate, ca. 2 mm, pilose, apex obtuse. Corolla pilose, tube ca. 1 mm, lobes ca. 1 mm. Disc short, fleshy, ringlike or obscurely 5-lobed. Ovary pilose. Follicles very narrowly oblong, 4.5-6 cm X 7-10 mm. Seeds oblong, 1.3-1.6 cm, tomentose, coma 1.5-2.5 cm. Fl. Jan-Jun, fr. Aug-Dec.

Dense montane forests; 300-500 m. Guangdong, Guangxi, Hainan [Laos, Vietnam].