Volume 10 > Part 3 > Year 2010 > Page 422 > Convolvulaceae > Ipomoea

20. Ipomoea pileata Roxb.wfo-0001297766

Fl. Ind. 2: 94. 1824; Gagnep. & Courchet in Lecomte, Fl. Indo Chine 4: 270. 1915; Ooststr., Blumea 3: 507. 1940; FI. Males. ser. 1, 4: 467. 1953; Kerr, Fl. Siam. Enum. 3(2): 16. 1954; R.C.Fang & Staples in C.Y.Wu & P.H.Raven, Fl. China 16: 306. 1995; Plate XLVII: 3.

Accepted Name : This is currently accepted.

Description : Annual herbaceous twiners, axial parts densely hispid-pilose with retrorse hairs; stems 1–2 m. Leaves cordate-ovate, 2.5–9 by 2.5–7.5 cm, pilose, underside more densely so, base cordate, margin entire, apex acuminate or attenuate; petiole 1.5–6 cm. Inflorescences capitate, few- to several-flowered, involucrate; peduncle 1.5–7 cm; outer bracts navicular, tapered at both ends, 27–55 mm, outside densely pubescent, inside long hirtellous, bracteoles oblong-spathulate, much smaller, villous. Flowers nocturnal; sepals nearly equal, 8–10 mm, outer 3 sepals elliptic spathulate, inner 2 sepals narrower, lanceolate, villous, apex obtuse; corolla salverform, 2.5–3 cm, pink or purple, tube cylindric, limb with deltoid lobes, midpetaline bands pilose; stamens inserted near middle of corolla tube; pistil included, ovary glabrous. Capsule subglobose, 5–6 mm diam. Seeds 3–4 mm, dark brown, glabrous or shortly pubescent.

Thailand : NORTHERN: Chiang Mai, Tak; NORTH-EASTERN: Nong Khai, Mukdahan, Maha Sarakham; EASTERN: Buri Ram, Ubon Ratchathani; SOUTH-WESTERN: Kanchanaburi, Phetchaburi, Prachuap Khiri Khan; SOUTH-EASTERN: Sa Kaeo, Prachin Buri, Chanthaburi.

Distribution : Africa, India (type), Sri Lanka, China, Laos, Cambodia, Vietnam, Malaysia, Indonesia, the Philippines.

Ecology : In clearings and sunny areas in grassy fields, old clearings, margins of rice paddy, thickets, scrub and disturbed areas in dipterocarp forests and deciduous dipterocarp-oak forests, < 50–520 m alt. Flowering: February, September, November, December; fruiting: November, December.

Vernacular : Thao song salueng (เถาสองสลึง)(Nakhon Ratchasima, Chon Buri); an chan (อัญชัน)(Phetchabun); ching cho liam (จิงจ้อเหลี่ยม)(Chanthaburi).