Nature conservation

Threatened species

Water Nutgrass - profile

Indicative distribution

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The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Cyperus aquatilis
Conservation status in NSW: Endangered
Commonwealth status: Not listed
Profile last updated: 22 Nov 2018


Sedge that appears as an annual during the wet summer period. It grows to 10 – 30 cm tall, and has weak triangular stems. The leaves are 1 – 3 mm wide and shorter than the flowering stem. The flower- and seed-head is made up of several branches radiating from the top of the stem. Each branch has one to eight flattened spikelets 3 mm wide with 10 – 30 green flowers. The seeds are three-sided nuts, whitish to pale brown.


In NSW, known only from a few sites north from Grafton. Also occurs in Queensland, Northern Territory, Western Australia and New Guinea.

Habitat and ecology

  • Grows in ephemerally wet sites, such as roadside ditches and seepage areas from small cliffs, in sandstone areas.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
South Eastern QueenslandBurringbar-Conondale Ranges Predicted None
South Eastern QueenslandClarence Lowlands Known None
South Eastern QueenslandClarence Sandstones Known None
South Eastern QueenslandScenic Rim Predicted None
South Eastern QueenslandSunshine Coast-Gold Coast Lowlands Predicted None