毛果薯 mao guo shu

Convolvulus eriocarpus (R. Brown) Sprengel; C. hispidus Vahl; C. sessiliflorus (Roth) Sprengel; Ipomoea hispida (Vahl) Roemer & Schultes; I. horsefieldiana Blume; I. sessiliflora Roth.

Herbs annual, twining or prostrate, with ± retrorsely or spreading hispid axial parts. Stems 1-2 m. Petiole 1.5-6.5 cm; leaf blade lanceolate-ovate or oblong-ovate, 3-9 X 1.5-3.5 cm, base cordate, margin entire, apex long attenuate, sometimes acute, appressed hispid; lateral veins 6 or 7 pairs. Cymes axillary, sessile or nearly so, usually 1-3-flowered; bracts linear-lanceolate, 3-8 mm, abaxially pilose. Pedicel very short or absent. Sepals ovate, ± equal, 7-9 mm, abaxially densely hirsute, apex linear-acuminate; inner sepals slightly narrower. Corolla pink or purplish, rarely white, campanulate, 7-9 mm, midpetaline bands densely hirsute outside; limb triangular-lobed. Stamens included. Ovary hirsute, 2-loculed, 4-ovuled. Stigma capitate, 2-lobed. Capsule ± globose, 5-6 mm in diam., spreading hirsute, apiculate. Seeds gray-brown, 2.5-4 mm, glabrous, minutely reticulate. 2n = 30.

Thickets, grassy slopes, open places, floodplains; 500-1100 m. Sichuan, Yunnan [Cambodia, India, Indonesia, Kashmir, Laos, Malaysia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Africa, N Australia].