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Ipomoea nil (PROSEA)

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Plant Resources of South-East Asia
Introduction
List of species


Ipomoea nil (L.) Roth

Protologue: Cat. Bot. 1: 36 (1797).

Synonyms

  • Convolvulus nil L. (1762),
  • Ipomoea scabra Forssk. (1775),
  • Ipomoea setosa Blume (1825).

Vernacular names

  • Blue morning glory (En)
  • Indonesia: areuy jotang bodas (Sundanese), teleng (Javanese)
  • Philippines: bulakan, kamokamotihan (Tagalog)
  • Thailand: waan tam khoei (south-eastern), waan phak bung (Bangkok)
  • Vietnam: hắc sửu, khiên ngưu, bìm lam.

Distribution

Circumtropical, including South-East Asia, but not yet found in Borneo.

Uses

In Indonesia and Nigeria, the seeds are used as a purgative. In China, the seeds are regarded as a diuretic, anthelmintic and deobstruant and are prescribed for dropsy and constipation, and to promote menstruation. A strong decoction is taken as an abortifacient. A decoction of the root is an emmenagogue. The plant is also widely cultivated for ornamental purposes.

Observations

  • A herbaceous annual or perennial, retrorsely hirsute, stems twining, sometimes prostrate.
  • Leaves broadly ovate to orbicular in outline, entire or 3-lobed, 4-14 cm × 3-12 cm, base cordate, apex acuminate, petiole 3-16 cm long.
  • Flowers solitary or in a few-flowered cyme, peduncle 2.5-12 cm long, bracts linear to filiform, 5-8 mm long; pedicel 5-10 mm long, sepals equal, lanceolate, 17-25 mm long, corolla funnel-shaped, 5-6 cm long, pale to bright blue, afterwards red or purple, rarely white, base of filaments with curled hairs, ovary glabrous.
  • Capsule ovoid to globular, mucronate, 1 cm in diameter, glabrous, mostly 3-valved and 3-celled; seed 5 mm long, black, grey-puberulent.

I. nil occurs in hedges, thickets, grasslands, and along roadsides, from sea-level up to 1300 m altitude. Sometimes a weed in sugar-cane plantations.

Selected sources

  • [74] Backer, C.A. & Bakhuizen van den Brink Jr, R.C., 1964—1968. Flora of Java. 3 volumes. Noordhoff, Groningen, the Netherlands. Vol. 1 (1964) 647 pp., Vol. 2 (1965) 641 pp., Vol. 3 (1968) 761 pp.
  • [134] Burkill, H.M., 1985—2000. The useful plants of West tropical Africa. 2nd Edition. 5 volumes. Royal Botanic Gardens, Kew, United Kingdom. Vol. 1 (1985), Families A—D, 960 pp.; Vol. 2 (1994), Families E—I, 636 pp.; Vol. 3 (1995), Families J—L, 857 pp.; Vol. 4 (1997), Families M—R, 969 pp; Vol. 5 (2000), Families S—Z, 686 pp.
  • [215] Council of Scientific and Industrial Research, 1948—1976. The wealth of India: a dictionary of Indian raw materials & industrial products. 11 volumes. Publications and Information Directorate, New Delhi, India.
  • [696] Morton, J.F., 1981. Atlas of medicinal plants of Middle America. Bahamas to Yucatan. Charles C. Thomas, Springfield, Illinois, United States. 1420 pp.
  • [786] Perry, L.M., 1980. Medicinal plants of East and Southeast Asia. Attributed properties and uses. MIT Press, Cambridge, Massachusetts, United States & London, United Kingdom. 620 pp.
  • [1026] van Oostrom, S.J., 1940. The Convolvulaceae of Malaysia, III. Blumea 3(3): 481—582.

Main genus page

Authors

  • Anna L.H. Dibiyantoro & G.H. Schmelzer