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FOC | Family List | FOC Vol. 16 | Convolvulaceae | Merremia

8. Merremia vitifolia (N. L. Burman) H. Hallier, Bot. Jahrb. Syst. 16: 552. 1893.

掌叶鱼黄草 zhang ye yu huang cao

Convolvulus vitifolius N. L. Burman, Fl. Indica 45. 1768; C. angularis N. L. Burman; Ipomoea vitifolia (N. L. Burman) Blume; I. vitifolia var. angularis (N. L. Burman) Choisy.

Herbs twining or prostrate; axial parts spreading hirsute with yellowish hairs, or glabrous. Stems purplish, terete, striate when old, to 4 m. Petiole 1-3(-19) cm; leaf blade circular in outline, (2.5-)5-18 X (2.5-)4-15.5 cm, base cordate, palmately (3-)5-7-angled or lobed; lobes broadly triangular or ovate-lanceolate, ± yellowish appressed hirtellous, abaxially more densely so, margin coarsely serrate or subentire, apex acuminate to obtuse. Inflorescences 1-3- or several flowered; peduncle 2-5(-15) cm; bracts subulate, 1.5-2 mm. Pedicel 1-1.6 cm, thicker distally. Sepals oblong or ovate-oblong, 1.4-1.8 cm, enlarged in fruit, ± leathery, ± shiny, pitted adaxially, pellucid glandular, apex obtuse or ± acute; outer 2 hirsute abaxially; inner ones glabrous. Corolla yellow, paler in tube, funnelform, 2.5-5.5 cm, glabrous outside; limb ± 5-angled. Stamens ca. 1.1 cm; anthers spirally twisted. Ovary glabrous. Capsule straw colored, ± globose, ca. 1.2 cm, papery. Seeds black-brown, trigonous-ovoid, ca. 7 mm, glabrous.

Roadsides, thickets, forests; (100-)400-1600 m. Guangdong, Guangxi, Hainan, Yunnan [India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam]

Used medicinally to treat bladder infections and stomach aches.


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