Family • Poaceae / Gramineae - Paspalum conjugatum P. J. Bergius - CARABAO GRASS - Liang er cao
|Paspalum conjugatum P. J. Bergius|
|Paspalum africanum Poir.|
|Paspalum bicrurum Salz. ex Doll.|
|Paspalum ciliatum Lam.|
|Paspalum dolichopus Trin. ex Steud.|
|Paspalum longissimum Hochst. ex Steud.|
|Paspalum renggeri Steud.|
|Paspalum sieberianum Steud.|
|Paspalum tenue Gaertn.|
|Panicum conjugatum (P. J. Berg.) Roxb.|
|Digitaria conjugata (P. J. Berg.) Schult.|
|Liang er cao (Chin.)|
|Buffalo grass (Engl.)|
|Carabao grass (Engl.)|
|Sour grass (Engl.)|
|Sour paspalum (Engl.)|
|Cha zi cao (Chin.)|
Other vernacular names
|CHINESE: Shuang sui que bai.|
|FRENCH: Herbe sure, Herbe créole.|
|GERMAN : Dallisgras.|
|ITALIAN : Paspalo dilatato.|
|JAPANESE: Shima suzume no hie.|
|SPANISH : Grama de agua, Hierba dallis, Grama de agua, Pasto dallis, Zacate dallis (Mexico).|
Additional Sources and Suggested Readings
(1) Antivenomous Plants used in the Zairean Pharmacopoeia / African Study Monographs, 7:21-35, March 1987
(2) Fatty acid synthase inhibitors from plants: Isolation, structure elucidation, and SAR studies / Journal of natural products / 2002, vol. 65, no12, pp. 1909-1914
(3) Sorting Paspalum names / Michel H. Porcher / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE
(4) Phytoextraction of Lead-Contaminated Soil Using Vetivergrass (Vetiveria zizanioides L.), Cogongrass (Imperata cylindrica L.) and Carabaograss (Paspalum conjugatum L.) / Annie Melinda Paz-Alberto, Gilbert C. Sigua, Bellrose G. Baui and Jacqueline A. Prudente / Env Sci Pollut Res 14 (7) 498 – 504 (2007)
Laua-laua is a gregarious stoloniferous grass. Stems are spreading and branching below withe the flowering branches 20 to 70 centimeters high. Leaves are narrow lanceolate, flat and thin, glabrous, 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.
– 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.
– Phytochemical study yielded glycosides, saponins and steroids.
– 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 leaf of Desmodium salicifolium and applied as compress 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.
• Fatty Acid Synthetase Inhibitor / Antifungal: FAS has been identified as a potential antifungal target. In a study that included Paspalum conjugatum, FAS was prepared 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.
• Phytoremediation: Study showed carabao grass as a potential phytoremediator, absorbing small amounts of Pb in soils. (In a comparative study, vetivergrass showed the most beneficial characteristics. Cogon grass showed to be more tolerant to Pb-contaminated soil compared to carabao grass.