Ecdysanthera tournieri Pierre, Rev. Cultures Colon. 11: 228. 1902; Parabarium burmanicum Lý; P. tournieri (Pierre) Pierre.

Lianas stout, to 20 m, glabrous except for branches and inflorescences. Bark brown, prominently lenticellate; branches puberulent. Petiole 6-8 mm; leaf blade oblong, narrowly so, 11-18 X 2.5-6 cm, apex cuspidate; lateral veins 7-9 pairs. Cymes corymbose, axillary, 8-16 cm, puberulent. Pedicel 2-2.5 mm, puberulent. Sepals ovate, 0.5-0.7 mm. Corolla white, 1.6-2.2 mm, tube 1-1.5 mm; lobes 0.5-0.7 mm, asymmetric. Ovary villous. Follicles narrowly ovoid, to 10 X 2 cm, stout, nearly woody, with many lenticels. Seeds oblong, ca. 1.5 cm X 3 mm, coma yellowish, ca. 3 cm. Fl. summer-autumn.

Forests; 800-1800 m. S Yunnan [Laos, Myanmar].