Lianas to 30 m, hirsute except for flowers. Petiole to 2 cm; leaf blade suborbicular to broadly ovate, 15-45 X 13-45 cm, papery, base cordate, apex acute or rounded, cuspidate; lateral veins 10-12 pairs. Calyx tubular, ca. 1 cm, apex toothed, glabrescent outside. Corolla white, limb to 8 cm wide; tube 3.5-4.5 cm, dilated at base, glabrous outside, throat villous; lobes obliquely obovate, ca. 3.5 cm. Filaments short pubescent. Follicles cylindric to fusiform, to 30 X 2 cm. Seeds oblong, coma ca. 5 cm. Fl. May-Jul. 2n = 20. Branchlets terete, tomentose; branches glabrous and lenticellate. Leaves: petiole 0.6–1.1 cm long; blade coriaceous, elliptic, 10.6–26 x 5.7–9.8 cm, apex obtuse to shortly acuminate, base rounded to weakly cordate; secondary veins 10–12 pairs; puberulent above and beneath. Inflorescence 10–15 cm long; pubescent. Calyx connate for about half of its length, lobes deltoid; sparsely puberulent to glabrous; 10.5–14 mm long. Corolla white; tube 4.7–6.2 cm long; lobes 2.7–3.7 cm long; glabrous outside, pubescent inside. Stamens with anthers 10.5 x 1.6 mm. Disk shorter than ovary. Fruit ca 25 cm long, 1.3–1.5 cm wide. Thailand, India (type), Sri Lanka, Burma, Vietnam, Laos, Cambodia, Malaysia, Indonesia. Thailand, India (type), Sri Lanka, Burma, Vietnam, Laos, Cambodia, Malaysia, Indonesia. Branchlets terete, tomentose; branches glabrous and lenticellate. Leaves: petiole 0.6–1.1 cm long; blade coriaceous, elliptic, 10.6–26 x 5.7–9.8 cm, apex obtuse to shortly acuminate, base rounded to weakly cordate; secondary veins 10–12 pairs; puberulent above and beneath. Inflorescence 10–15 cm long; pubescent. Calyx connate for about half of its length, lobes deltoid; sparsely puberulent to glabrous; 10.5–14 mm long. Corolla white; tube 4.7–6.2 cm long; lobes 2.7–3.7 cm long; glabrous outside, pubescent inside. Stamens with anthers 10.5 x 1.6 mm. Disk shorter than ovary. Fruit ca 25 cm long, 1.3–1.5 cm wide. Lianas to 30 m, hirsute except for flowers. Petiole to 2 cm; leaf blade suborbicular to broadly ovate, 15-45 X 13-45 cm, papery, base cordate, apex acute or rounded, cuspidate; lateral veins 10-12 pairs. Calyx tubular, ca. 1 cm, apex toothed, glabrescent outside. Corolla white, limb to 8 cm wide; tube 3.5-4.5 cm, dilated at base, glabrous outside, throat villous; lobes obliquely obovate, ca. 3.5 cm. Filaments short pubescent. Follicles cylindric to fusiform, to 30 X 2 cm. Seeds oblong, coma ca. 5 cm. Fl. May-Jul. 2n = 20.General Information
Source: [
Source: [
Distribution
Source: [
e-Flora of Thailand
DistributionFlora of China @ efloras.org
General Information
