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Family Poaceae / Gramineae
Laua-laua
Paspalum conjugatum P. J. Bergius

CARABAO GRASS
Liang er cao

Scientific names  Common names 
Paspalum conjugatum P. J. Bergius Bantotan (Mbo.)
Paspalum africanum Poir. Kauad-kauaran (Tag.)
Paspalum bicrurum Salz. ex Doll. Kauat-kauat (Tag.)
Paspalum ciliatum Lam. Laua-laua (Tag.)
Paspalum dolichopus Trin. ex Steud. Sakate (Bis.)
Paspalum longissimum Hochst. ex Steud. Buffalo grass (Engl.)
Paspalum renggeri Steud. Carabao grass (Engl.)
Paspalum sieberianum Steud. Hilograss (Engl.)
Paspalum tenue Gaertn. Sour grass (Engl.)
Panicum conjugatum (P. J. Berg.) Roxb. Sour paspalum (Engl.)
Digitaria conjugata (P. J. Berg.) Schult. Cha zi cao (Chin.)

Gen info
The genus Paspalum has about 200 species widely distributed in the tropics and subtropics of both hemispheres. Many provide forage or pasture grass for cattle and horses.

Botany
Laua-laua is a gregariously stoloniferous grass. Stems are spreading and branching below withe the flowering branches 20 to 70 centimeters high. Leaves are narrow lanceolate, flat and thin, glabroous, 8 to 20 centimeters long, 5 to 15 millimeters wide. Spikes are two, terminal, slender and 6 to 12 centimeters long. The spikelets are imbricate, 1.2 to 1.4 millimeters long, pale-green, plano-convex, the empty glumes with long, soft, white marginal hairs.

Distribution
- Grass is found in abundance in open waste places and settled areas, about towns, along trails, streams throughout the Philippines.
- Considered a weed but sometimes planted as a coarse ground cover grass.

- Native of tropical America.
- Now pantropic.

Parts utilized:
Fresh roots.

Properties and constituents
- Phytochemical study yielded glycosides, saponins and steroids.

Uses
Folkloric
- Decoction of fresh roots are taken internally for diarrhea.
- In Africa, leaves used for fever, debility, stomach troubles and pulmonary afflictions; roots used for diarrhea and dysentery
- In Gabon, pounded with the leafof Desmodium salicifolium and applied as compresss for contusions, sprains and dislocations.
- In Congo, the leaves used with Macaranga sp and Renealmia sp. in a vapor bath for fever.
- In Cameroon, decoction of leaves, softened in hot ashes and ground in water, used for dysentery.
- In Trinidad, leaf infusions used for fever.
- In Malaysia, young leaves are pounded and applied as paste onto wounds and cuts.
- In Ecuadorian Amazon, infusion of the plant used for headaches. (The ethnobotanical efficacy may be due to an ergot-like fungus infestation.)
- In Zaire, as antivenom, decoction of whole plant is rubbed on the bite with the oil of Lebrunia bushaie.

Others
- In Africa, grass provides good grazing for cattles and horses, taken before seed-set.
- Cats and dogs said to eat the leaf as purgative.

Studies
Fatty Acid Synthetase Inhibitor / Antifungal: FAS has been identified as a potential antifungal target. In a study that included Paspalum conjugatum, FAS was prrepared from thirteen compounds including three new natural products, representing five chemotypes: isoflavones,, flavones, biflavonoids, hydrolyzable tannin-related derivatives and triterpenoids. Although there were several antifungal components in the set, FAS inhibitory activity could not be correlated with antifungal activity.

Availability
Wild-crafted. 

Last Update January 2012
Photo © Godofredo Stuart / StuartXchange
OTHER IMAGE SOURCE: Line Drawing / Paspalum conjugatum P.J. Bergius - hilograss / USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Miscellaneous Publication No. 200. Washington, DC / USDA

Additional Sources and Suggested Readings
(1)
Paspalum conjugatum Berg. / Useful Plants of West Tropical Africa / Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol 2
(2)
Antivenomous Plants used in the Zairean Pharmacopoeia / African Study Monographs, 7:21-35, March 1987
(3)
Fatty acid synthase inhibitors from plants: Isolation, structure elucidation, and SAR studies / Journal of natural products / 2002, vol. 65, no12, pp. 1909-1914

(4)
MEDICINAL PLANTS OF THE COMMUNITY IN SABAH / Fasihuddin B Ahmad and Hasmah Raji / Faculty of Science and Natural Resources,Universiti Kebangsaan Malaysia Sabah Campus,
(5)
Headache Treatments By Native Peoples of the Ecuadorian Amazon: A Preliminary Cross-Disciplinary Assessment / Ethan B Russo MD / Deparment of Neurology, Western Montana Clinic,
Box 7609, 515 W.Front St., Missoula, MT 59807 (U.S.A.)
(6)
Medicinal plants used for intestinal diseases in Mbalmayo Region, Central Province, Cameroon / E. Noumi, A Yomi / Fitoterapia 72Ž2001.246254
(7)
Paspalum conjugatum P.J.Bergius / Catalogue of Life
(8)
Sorting Paspalum names / Michel H. Porcher / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE
(9)
Cytological Study in Paspalum conjugatum Berg / J S Fang and H W Li / Botanical Bulletin of Academia Sinica, Received Jan 1965


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