Panicum repens

Scientific namePanicum repens
GRASS FAMILY
Poaceae
 
COMMON NAMES
English: bullet grass, couch panicum, creeping panic grass, quack grass, torpedograss
Cambodia: smau phluk
Indonesia: rumput lampuyangan
Philippines: luya-luyahan, pagudpel, parayparay
Viet Nam: co gung, co cua gà, co ong
 
DESCRIPTION
Evergreen grass with culms (flowering stem) (1 m in height) arising from long, creeping rhizomes with sharp-pointed (torpedo-like) tips.
Leaves: Green, linear, flat or folded (7–25 cm long and 2–8 mm wide) with a whitish, waxy covering; leaf sheaths (tubular structure that clasps stem) hairless or hairy, with hairs usually restricted to the upper margins; ligule (thin outgrowth at junction of the leaf and leaf stalk) is membranous with short hairs.
Flowers: Branched, open inflorescences (7–22 cm long) with 1–3 branchlets per node.
 
ORIGIN
Botswana, Cameroon, Central African Republic, Egypt, Ethiopia, Ghana, Guinea, Kenya, Ivory Coast, Liberia, Mali, Morocco, Namibia, Niger, Nigeria, Senegal, Sierra Leone, South Africa, Swaziland, Tanzania, Uganda, Zimbabwe, and Greece and Italy in Europe.
 
REASON FOR INTRODUCTION
Forage
 
INVADES
Roadsides, disturbed land, wasteland, crops, plantations, drainage ditches, irrigation channels, lowlands, floodplains, wetlands, gullies,lake and river edges.
 
IMPACTS
Displaces native vegetation, particularly in or near shallow waters. It is also a serious weed in a wide range of perennial crops including sugarcane in Taiwan and Hawaii; pineapple in West Africa; tea in India, Indonesia and Sri Lanka; various orchard crops in Thailand; rubber, coconut and oil palm in Malaysia; and rice in Indonesia and Sri Lanka (Holm et al., 1977). In Taiwan, rhizome density can reach 15 tons per hectare, while a density of 5 tons per hectare can result in a 50% reduction in sugarcane yield (Peng and Sze, 1974). P. repens may act as an alternative host to the rice leafhopper (Holm et al., 1977).
 
Source:
Witt, Arne. 2017. Guide to the Naturalized and Invasive Plants of Southeast Asia. CAB International. Retrieved from http://www.cabi.org/cabebooks/ebook/20173158961 on 23 October 2018
FilenamePanicum repens.pdf
Filesize1.56 MB
Filetypepdf (Mime Type: application/pdf)
Last updated on 02/14/2019 22:30