虎掌藤 hu zhang teng

Convolvulus pes-tigridis (Linnaeus) Sprengel; Ipomoea capitellata Choisy; I. hepaticifolia Linnaeus.

Herbs annual, twining, with spreading hispid axial parts. Stems 0.5-3 m. Petiole 2-8 cm; leaf blade circular or transversely elliptic in outline, 2-10 X 3-13 cm, palmately deeply divided; segments (3-)5-9, elliptic or oblong, tapered at both ends, densely pubescent, apex mucronate. Inflorescences capitate, few flowered; peduncle 4-11 cm; bracts hirsute; outer involucral bracts oblong to linear-oblong, 2-2.5 cm; inner bracts smaller. Pedicel obsolete. Sepals lanceolate, slightly unequal, 1-1.4 cm, hirsute on both sides. Corolla white, funnelform, 3-4 cm, midpetaline bands sparsely pubescent. Stamens included; filaments glabrous. Pistil included; ovary 2-loculed, glabrous. Stigma 2-lobed. Capsule ovoid, ca. 7 mm, 4-valved. Seeds ellipsoid, ca. 4 mm, gray tomentellous. 2n = 28, 30.

Thickets, roadsides, seashores; 0-400 m. Guangdong, S Guangxi, Hainan, Taiwan, S Yunnan [Cambodia, Indonesia, Kashmir, Malaysia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Africa, Australia, Pacific Islands].