Australian Tropical Rainforest Plants - Online edition

Cyperus gracilis R.Br.

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Herbarium specimen. © DERM

Brown, R. (1810) Prodromus Florae Novae Hollandiae : 213.

Common name

Slender Flat Sedge


Tufted perennial with a short rhizome. Stems slender, 4-angled, smooth, 5-40 cm tall.


Leaf blades filiform, 40-170 x 0.5-1 mm, shorter than the stems, with short brown sheaths.


Inflorescence subtended by 3 leaf-like involucral bracts 20-85 mm long. Spikelets 5-10 in a sessile terminal cluster or head, flattened, oblong-lanceolate, 8-30 -flowered. Glumes 2-2.5 mm long with 3-4 prominent nerves each side of keel. Ovary about 0.5 mm long. Style and stigmas less than 1 mm long.


Nut obovoid, trigonous, about 1 mm diam. Dark brown to blackish, and distinctly truncate at the apex with style remnants persistent, nut to hardly shorter than the glume.


Features not available.

Distribution and Ecology

Occurs in NEQ, CEQ and south to New South Wales. Altitudinal range from 160-410 m. Grows in Eucalypt open forest, deciduous vine thicket and Eucalypt woodland. Also occurs in New Caledonia.

Natural History & Notes

Sometimes a weed of cultivation.

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