Gahnia trifida Labill

Cutting Sedge

Nov. Holl. Pl. 1: 89, t. 116 (1805) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Tussock-forming perennial. Culms 55–100 cm high, c. 4 mm diam. Leaf-blades flat to inrolled, spreading, scabrous, longer than or equalling inflorescence; ligule narrow, chartaceous; sheath dark brown to black, dull. Inflorescence narrow, erect, 30–70 cm long, with 5–8 nodes. Spikelets 1(–2)-flowered; glumes 4–7, the 2 or 3 lowest shorter than the upper, scaberulous, with long- to short-mucronate apex; stamens 4–6; anthers 1.3–2 mm long excluding appendage 0.5 mm long. Nut oblong to narrow-obovoid, rarely to narrow-ellipsoid, trigonous, ± smooth, reticulate, shining, 2.0–2.6 mm long, 0.8–1.0 mm diam., grey to black (a thin white covering sloughs off with age). Flowers spring.

Brid, CVU, EGL, EGU, GipP, Glep, GGr, OtP, Strz, VVP, WaP, WPro, Wim. Also WA, SA, Tas. Typically fringing coastal saltmarsh communities, but occurring farther inland near saline and sub-saline lakes and watercourses.

Used to make 'straw' brooms in SA.

Source: Wilson, K.L. (1994). Cyperaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Cyperaceae
genus Gahnia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Gahnia trifida in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Gahnia trifida in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Wimmera present native
Glenelg Plain present native
Bridgewater present native
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Central Victorian Uplands present native
Greater Grampians present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Wilsons Promontory present native
Strzelecki Ranges present native

State distribution

Distribution map
Western Australia
South Australia