Cyperus pygmaeus Rottb.

Descr. Icon. Rar. Pl. 20, t. 140 figs 4 & 5 (1773) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Small, tufted, leafy annual with reddish roots. Culms triquetrous, smooth, 1–20 cm high, to 1.5 mm diam. Leaves not septate-nodulose, usually longer than culms, 1–2 mm wide. Inflorescence densely head-like, 6–18 mm diam.; involucral bracts leaf-like, 5–7 or more, spreading, very much longer than inflorescence, often a few smaller bracts protruding from the head. Spikelets flattened, very numerous per cluster, 3–5 mm long, 1.5–2 mm wide in side view, 8–20-flowered; rachilla not winged, persistent; glumes acute, short-mucronate, with sides 1–2-nerved, white to pale brown with conspicuous green keel, c.2 mm long, c. 0.5 mm wide; stamens 1 or 2; style 2(–3)-fid. Nut dorsally flattened with a flat or concave face against the rachilla, or sometimes trigonous, obovoid to ellipsoid, pale brown, from one-half to one-third as long as glume, 0.8–1 mm long, 0.2–0.5 mm diam. Flowers spring–summer.

HNF, MuM, MSB, RobP. All mainland States. Asia, Africa, Europe. On banks and seasonally wet floodways of the Murray River between Mildura and Swan Hill, with a distant occurrence upstream near Yarrawonga; on clayey soils in open positions.

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.
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Cyperaceae
genus Cyperus
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Cyperus pygmaeus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Cyperus pygmaeus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Murray Scroll Belt present native
Robinvale Plains present native
Highlands-Northern Fall present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales