Ipomoea pileata Roxb.

Herbs annual, twining, with ± densely retrorse hispid-pilose axial parts. Stems 1-2 m. Petiole 1.5-6 cm; leaf blade cordate-ovate, 2.5-9 X 2.5-7.5 cm, pilose, more densely so abaxially, base cordate, margin entire, apex acuminate or attenuate. Inflorescences capitate, few to several flowered; peduncle 1.5-7 cm; involucral bracts navicular, tapered at both ends, 2.7-5.5 cm, outside densely pubescent, inside long hirtellous; bracteoles oblong-spatulate, much smaller, villous. Sepals subequal, 8-10 mm; outer 3 elliptic-spatulate; inner 2 narrower, lanceolate, villous, apex obtuse. Corolla pink or purple, salverform, 2.5-3 cm; tube cylindric; limb with deltate lobes, midpetaline bands pilose. Stamens inserted near middle of corolla tube. Ovary glabrous. Capsule ± globose, 5-6 mm in diam. Seeds dark brown, 3-4 mm, glabrous or short pubescent.

Guangdong, Guangxi, Hainan, Yunnan [Cambodia, India, Indonesia, Laos, Malaysia, Philippines, Sri Lanka, Thailand, Vietnam; Africa].

Edges of forests, clearings on mountain slopes, roadsides, grasslands; 100-1000 m.

Convolvulus pileatus (Roxburgh) Sprengel.

Annual or perennial twining herb, growing from a thick taproot. Stems up to 3 m long, pubescent. Leaves ovate, up to 12.5 × 10 cm, cordate at the base, pubescent on both surfaces. Flowers funnel-shaped, white to pink, often darker in the very narrow tube, in heads arising from a distinct boat-shaped bract. Capsule ovoid, hairless. See the similar I. involucrata for comparison, which also has boat-shaped bracts subtending the flowers. That species has larger flowers with a wider corolla tube and acute sepals.

Widespread in Tropical Africa, northern South Africa, Mascarene islands and from India to China