Volume 10 > Part 3 > Year 2010 > Page 406 > Convolvulaceae > Ipomoea

2. Ipomoea alba L.wfo-0001297242

Sp. Pl. 161. 1753; Ooststr., Blumea 3: 547. 1940; Fl. Males. ser. 1, 4: 480. 1953; R.C.Fang & Staples in C.Y.Wu & P.H.Raven, Fl. China 16: 309. 1995.— Calonyction album (L.) House, Bull. Torrey Bot. Club 31: 591. 1904; Kerr, Fl. Siam. Enum. 3(2): 19. 1954.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Perennial herbaceous climber, usually glabrous; stems to 10 m, terete, smooth or with fleshy prickles. Leaves ovate to subcircular in outline, 10–20 by 5–16 cm, base cordate, margin entire, angular to 3-lobed, apex acuminate, mucronulate; petiole 5–20 cm. Inflorescences cymose, 1- to several-flowered; peduncle stout, terete, 1–24 cm; bracts early deciduous, small; pedicel 7–15 cm, clavate distally, enlarged in fruit. Flowers nocturnal, fragrant; sepals unequal, elliptic to ovate, glabrous; outer 3 sepals 5–12 mm, apex with a stout spreading, 4–9 mm awn; inner 2 sepals 7–15 mm, mucronate; corolla salverform, white with greenish bands, tube 7–12 cm, ca 5 mm diam., limb 7–12 cm diam., undulate; stamens exserted, filaments inserted in upper corolla tube, glabrous, anthers sagittate basally; pistil exserted, ovary narrowly conical, glabrous. Capsule ovoid, 25–30 mm, apiculate. Seeds ca 10 by 7–8 mm, white, brown, or black, glabrous.

Thailand : NORTHERN: Chiang Mai, Chiang Rai; EASTERN: Chaiyaphum; SOUTH WESTERN: Kanchanaburi; CENTRAL: Phra Nakhon Si Ayutthaya; SOUTH-EASTERN: Chon Buri.

Distribution : Nepal, India (type), Sri Lanka, Myanmar, China, Vietnam, Malaysia, Indonesia, the Philippines, New Guinea, Pacific Islands, native in N & S America.

Ecology : Along streams or in moist places in secondary forests, scrub jungle, evergreen forests, mixed deciduous/evergreen forests, or cleared land, ca 120–800 m alt. Flowering: February, March, November, December; fruiting: January.

Vernacular : Phak bung doi (ผักบุ้งดอย)(Chiang Mai); dok phra chan (ดอกพระจันทร์)(Nakhon Ratchasima); ban duek (บานดึก)(Kanchanaburi).