Mossman River grass (Cenchrus echinatus)



Mossman river grass, native to Central America and southern North America, is an annual grass growing to 80cm. It spreads by seed in burrs. Burrs are spread attached to animals, clothing and bags, and burrs float and are moved by water. Germinates spring and summer in temperate zones. A weed in about 35 countries and is still spreading around the world.

Mossman river grass prefers sandy soils especially along the coast; provides good grazing when young, but is a major weed if allowed to mature. Burrs reduce the value of wool and make shearing hazardous. Spines of burrs also penetrate hides lowering their value. Mossman river grass competes for moisture, nutrients and light. Burrs are also a problem in recreation areas.

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Herbicide options

Contact your local council weeds officer for control advice for Mossman River grass (Cenchrus echinatus).

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Legal requirements

The content provided here is for information purposes only and is taken from the Noxious Weeds (Weed Control) Order 2014 published in the NSW Government Gazette, detailing weeds declared noxious in New South Wales, Australia, under the Noxious Weeds Act 1993. The Order lists the weed names, the control class and the control requirements for each species declared in a Local Control Authority area.

Area Class Legal requirements
All of NSW 5 Restricted Plant
The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with

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For technical advice and assistance with identification please contact your local council weeds officer.
For further information call the NSW Invasive Plants and Animals Enquiry Line on 1800 680 244 or send an email to

Reviewed 2014