Baissea malaccensis J. D. Hooker, Fl. Brit. India 3: 663. 1882; Giadotrum malaccense (J. D. Hooker) Pichon.

Lianas to 35 m, glabrous throughout except for corolla throat. Stems to 5 cm in diam., dark brown; branchlets pale brown. Petiole 0.7-2 cm; leaf blade elliptic, oblong, or subobovate, rarely narrowly ovate, 7-16 X 2-6.5 cm, base cuneate or rounded, apex caudate-acuminate; lateral veins 10-14 pairs, at ca. 90° to midvein. Cymes 4-7 cm, usually 3-branched. Corolla yellow or yellowish; tube short cylindric, 1.6-2.5 mm, throat pubescent; lobes oblong, 1-3.2 X 0.1-1 mm. Stamens inserted near base or below middle of corolla tube; filaments minutely pubescent adaxially; anthers sagittate, ca. 2.5 mm; disc shorter than ovary. Follicles 2, linear, 7-22 X (0.5-)1-1.5 cm. Seeds narrowly fusiform, 2-3 cm, coma to 4 cm. Fl. Apr-Jul, fr. Jul-Oct.

The species was treated in FRPS as Baissea acuminata (Wight) Bentham ex J. D. Hooker (C. acuminata Wight), which is a very different species not found in China.

Montane forests, brushes along riverbanks or streamsides; 500-1600 m. Guizhou, S Yunnan [Laos, Malaysia, Thailand, Vietnam]