Volume 10 > Part 3 > Year 2010 > Page 409 > Convolvulaceae > Ipomoea

4. Ipomoea asarifolia (Desr.) Roem. et Schult.wfo-0001296662

Syst. Veg. 4: 251. 1819; Ooststr., Blumea 3: 539. 1940; Fl. Males. ser. 1, 4: 477. 1953; Kerr, Fl. Siam. Enum. 3(2): 10. 1954.— Convolvulus asarifolius Desr. in Lam., Encycl. 3: 562. 1789.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Perennial herbs; stems prostrate or tips twining, thick, terete or angular. Leaves circular or kidney-shaped, 3.5–8 by 3.5–10 cm, base cordate, basal lobes rounded, apex broadly rounded or weakly emarginate, mucronulate; petiole thick, 3–9 cm long, deeply grooved adaxially, smooth or minutely muricate. Inflorescences axillary, often with leafy shoot; peduncles angular, 2–5.5(–10) cm, cymose, 1- to few-flowered, central flower pedicel longer than calyx, 14–24 mm. Flowers showy, sepals unequal, elliptic-oblong, obtuse, mucronulate, outer 2 shorter, 3-nerved, rather warty, 5–6 mm long, inner ones 8–9 mm; corolla funnelform, 5–6 cm long, red-purple, glabrous; stamens included, filaments shortly pilose at base; pistil included, ovary glabrous. Capsule globose, ca 1.5 cm diam., glabrous. Seeds ca 5–7 mm long, glabrous.

Thailand : EASTERN: Nakhon Ratchasima, Buri Ram, Roi Et, Yasothon; SOUTH WESTERN: Kanchanaburi; CENTRAL: Nakhon Nayok; SOUTH-EASTERN: Prachin Buri, Chon Buri; PENINSULAR: Chumphon, Phuket.

Distribution : Almost ubiquitous in the tropics: Americas, Africa (type), India, Vietnam, Malesia.

Ecology : Sprawling or trailing on damp ground in roadside ditches, muddy pastures, rice paddies, and sunny fields, on clay soil, below 50 m alt. Flowering: July, October–December; fruiting: July, October, November.

Vernacular : Phak bung chang (ผักบุ้งช้าง)(Kanchanaburi ex Staples 315); phak bung khun (ผักบุ้งขุน)(Chumphon, Prachin Buri ex Kerr 11920, Collins 1800); phak bung khan (ผักบุ้งขัน)(Chon Buri ex Loweera-amornpan 12).