Imperata conferta (PROSEA)

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Plant Resources of South-East Asia
Introduction
List of species


Imperata conferta (J.S. Presl) Ohwi

Protologue: Bot. Mag., Tokyo 55: 549 (1941).

Synonyms

  • Saccharum confertum J.S. Presl (1830),
  • Imperata exaltata (Roxb.) Brongn. (1831).

Vernacular names

  • Malaysia: lalang jawa
  • Philippines: kogon-lake (Tagalog), gogon (Bikol), kogon (Tagalog, Bisaya, Sulu)
  • Vietnam: cỏ lau.

Distribution

I. conferta is found throughout South-East Asia in habitats similar to I. cylindrica, but it is less common.

Uses

In the Philippines a decoction of the rhizomes is drunk against diarrhoea caused by indigestion and against gonorrhoea. The leaves are often used for thatching and the young shoots are grazed. The plants are sometimes used to make hats and mats. Experiments have shown that they can be used to make good paper.

Observations

  • A rhizomatous, herbaceous perennial up to 200 cm tall, culms glabrous or with a few hairs below the nodes.
  • Leaf sheaths of basal leaves glabrous, leaf blade 30-80 cm × 0.7-2 cm, scabrid, glabrous.
  • Inflorescence a spiciform panicle 25-50 cm long.
  • Floret with upper glume 3-4-veined, stamen 1.

I. conferta is found in a wide range of open, disturbed anthropogenic habitats from sea-level up to 1000 m altitude, but in the Philippines in general preferring forest clearings at higher elevations.

Selected sources

  • [97] Backer, C.A. & Bakhuizen van den Brink Jr, R.C., 1963-1968. Flora of Java. 3 volumes. Noordhoff, Groningen, the Netherlands. Vol. 1 (1963) 647 pp., Vol. 2 (1965) 641 pp., Vol. 3 (1968) 761 pp.
  • [172] Bor, N.L., 1960. The grasses of Burma, Ceylon, India and Pakistan. Pergamon Press, Oxford, United Kingdom. 767 pp.
  • [190] Brown, W.H., 1951-1957. Useful plants of the Philippines. Reprint of the 1941-1943 edition. 3 volumes. Technical Bulletin 10. Department of Agriculture and Natural Resources. Bureau of Printing, Manila, the Philippines. Vol. 1 (1951) 590 pp., Vol. 2 (1954) 513 pp., Vol. 3 (1957) 507 pp.
  • [202] Burkill, I.H., 1966. A dictionary of the economic products of the Malay Peninsula. Revised reprint. 2 volumes. Ministry of Agriculture and Co-operatives, Kuala Lumpur, Malaysia. Vol. 1 (A-H) pp. 1-1240. Vol. 2 (I-Z) pp. 1241-2444.
  • [577] Henty, E.E., 1969. A manual to the grasses of New Guinea. Botany Bulletin No. 1. Division of Botany, Department of Forests, Lae, Territory of Papua and New Guinea. 215 pp.
  • [580] Heyne, K., 1950. De nuttige planten van Indonesië *[The useful plants of Indonesia]. 3rd Edition. 2 volumes. W. van Hoeve, 's-Gravenhage, the Netherlands/Bandung, Indonesia. 1660 + CCXLI pp.
  • [630] Hubbard, C.E., 1944. Taxonomy, description and distribution of species and varieties. In: Imperata cylindrica. Taxonomy, distribution, economic significance and control. Imperial Agricultural Bureaux Joint Publication No. 7. Imperial Forestry Bureau, Oxford & Imperial Bureau of Pastures and Forage Crops, Aberystwyth, United Kingdom. pp. 5-13.
  • [1178] Quisumbing, E., 1978. Medicinal plants of the Philippines. Katha Publishing Co., Quezon City, the Philippines. 1262 pp.
  • [1386] Soerjani, M., Kostermans, A.J.G.H. & Tjitrosoepomo, G., (Editors) 1987. Weeds of rice in Indonesia. Balai Pustaka, Jakarta, Indonesia. 716 pp.

Main genus page

Authors

  • Juliana Jonathan & Bambang P.J. Hariadi
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