Paspalum conjugatum, commonly known as carabao grass or hilo grass, is a tropical to subtropical perennial grass. It is originally from the American tropics, but has been naturalized widely in tropical Southeast Asia and Pacific Islands. It has also spread to Northern Africa and Northern Eastern Australia, and New Zealand. It is also known as sour paspalum, T-grass (after the shape of their panicle), or more confusingly, as "buffalo grass" or "sour grass".
Taxonomy
Paspalum conjugatum belongs to the genus Paspalum (bahiagrasses or crown grasses) in the grass family Poaceae. It was first described in 1772 in by the Swedish botanist Peter Jonas Bergius.
Distribution
Paspalum conjugatum can be grown as a lawn grass if kept cropped and low to the ground
Paspalum conjugatum is native to the tropics of the Americas. It was introduced to tropical Southeast Asia and the Pacific Islands during the colonial period. It is particularly abundant in the Philippines from where the English common name "carabao grass" originates (named after the carabao, the local water buffalo breed); and in Hawaii where it is known as "hilo grass". They have also spread to Northern Africa and Northern and Eastern Australia. In New Zealand, P. conjugatum is naturalised in 1977, and is found on the Kermadec Islands, and in one location on the mainland (near Rotorua).