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.

Contact details

Ann Doak
National Coordinator Hymenachne and Pond Apple
Department of Primary Industries and Fisheries
Tropical Weeds Research Centre
PO Box 187, Charters Towers, Queensland 4820
Phone: (07) 4761 5710 Fax: (07) 4761 5757 Mobile: 0428 104 961
ann.doak@dpi.qld.gov.au

Coverage
Extent in Australia Potential distribution
NT, QLD, SA 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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