Weeds in Australia

Publications and resources

Hymenachne or Olive hymenachne (Hymenachne amplexicaulis) weed management guide

Weeds of National Significance
Department of the Environment and Heritage and the CRC for Australian Weed Management, 2003
ISBN 1 9209 3207 0

PDF file

About the guide

Hymenachne is a Weed of National Significance. It is regarded as one of the worst weeds in Australia because of its invasiveness, potential for spread, and economic and environmental impacts.

Hymenachne is a semi-aquatic grass that was introduced as fodder in ponded pastures of central Queensland. It was subsequently planted in tropical wetlands of northern Queensland and the Northern Territory, and has since escaped from cultivation and seriously threatens northern wetlands.

Hymenachne invades permanent water bodies and seasonally inundated wetlands. It blocks waterways, potentially causing flooding and threatening drinking water. It infests and blocks drainage and irrigation channels used for sugar cane and contaminates sugar cane crops. Fish habitat and nursery areas are also at risk.

This management guide was prepared in 2003. The state and territory contacts in this document may be out of date.

For advice on weed control in your state or territory see the primary contacts on the State and territory weed management arrangements page.

Contact details

Craig Magnussen
Biosecurity Queensland
Department of Agriculture, Fisheries and Forestry
LMB 17
Warwick Qld 4370
Tel: (07) 4661 6612
Fax: (07) 4661 6666
Mob: 0428 104 961
craig.magnussen@daff.qld.gov.au

Coverage
Extent in Australia Potential distribution
NT, QLD Could further expand in current locations; plus WA, NSW
Cover of Hymenachne or Olive hymenachne (Hymenachne amplexicaulis) - Weeds of National Significance - Weed Management Guide

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