Click on images to enlarge
habit (Photo: Sheldon Navie)
habit (Photo: Sheldon Navie)
creeping underground stems and leaves (Photo: Sheldon Navie)
stems and greenish coloured seed-heads (Photo: Sheldon Navie)
close-up of seed-heads subtended by several leafy bracts (Photo: Sheldon Navie)
seedling (Photo: Sheldon Navie)
tufted habit of the very similar kyllinga weed, Cyperus sesquiflorus (Photo: Sheldon Navie)
whitish-coloured seed-heads of kyllinga weed, Cyperus sesquiflorus (Photo: Sheldon Navie)
comparison of the seed-heads of Mullumbimby couch (Cyperus brevifolius), on the left, and kyllinga weed (Cyperus sesquiflorus), on the right (Photo: Sheldon Navie)
Cyperus brevifolius (Rottb.) Hassk.
Kyllinga brevifolia Rottb.
globe kyllinga, green kyllinga, kyllinga, Mullumbimby couch, perennial greenhead sedge, short-leaf flatsedge
This species is widespread in the tropical, sub-tropical and warmer temperate regions of the world and its exact origin in obscure. However, some authors believe it to be native to tropical Asia and the warmer temperate regions of China and Japan.
This species is very widely naturalised in the coastal and sub-coastal regions of Australia. It is particularly common in the northern and eastern parts of the country (i.e. in the northern parts of Western Australia and the Northern Territory, in south-eastern, central and northern Queensland, in eastern New South Wales and in the ACT). Also recorded in the the inland regions of southern New South Wales, in some parts of Victoria, and in the south-western parts of Western Australia. It is also naturalised on Lord Howe Island and Norfolk Island, and possibly naturalised in South Australia.
This widespread sedge is a common weed of habitation (i.e. gardens and lawns), disturbed sites, waste areas and wetter pastures in many regions. It has also invaded disturbed wetlands, swamps and creeks and for this reason it is also regarded as an environmental weed in parts of Western Australia, Queensland, New South Wales and Victoria. For example, Mullumbimby couch (Cyperus brevifolius ) is listed among the top 200 invasive plants in south-eastern Queensland. It also appears on environmental weed lists for the wider Sydney and Blue Mountains region and the Goulburn Broken Catchment in Victoria, and is listed as a moderately invasive species in the Environmental Weeds Strategy of Western Australia.
In Hawaii it grows along trails in wetter forests and in Fiji it infests waterways, river banks, hillsides and cleared mountain ridges. In New Zealand it sometimes forms dense extensive swards on damp flats.
Fact sheets are available from Department of Employment, Economic Development and Innovation (DEEDI) service centres and our Customer Service Centre (telephone 13 25 23). Check our website at www.biosecurity.qld.gov.au to ensure you have the latest version of this fact sheet. The control methods referred to in this fact sheet should be used in accordance with the restrictions (federal and state legislation, and local government laws) directly or indirectly related to each control method. These restrictions may prevent the use of one or more of the methods referred to, depending on individual circumstances. While every care is taken to ensure the accuracy of this information, DEEDI does not invite reliance upon it, nor accept responsibility for any loss or damage caused by actions based on it.
Copyright © 2016. All rights reserved. Identic Pty Ltd. Special edition of Environmental Weeds of Australia for Biosecurity Queensland.
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