Isolepis stellata (C.B.Clarke) K.L.Wilson

Star Club-rush

Telopea 2: 169 (1981) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Small tufted annual. Culms filiform, to 8(–20) cm high. Leaf-blades to 2.5 cm long. Spikelets usually 3–10 per inflorescence, 3–4 mm long; involucral bract to 10 mm long, usually exceeding inflorescence; glumes acute, excurved-mucronate, keel stout and broad, sides 1–3-nerved, straw-coloured, often dotted or tinged red-brown, 1.5–2 mm long; stamen 1; style 3-fid. Nut unequally trigonous, with angles well-defined obovoid, minutely punctate, glistening, dark brown to black, half as long as glume, 0.6–0.8 mm long, 0.5–0.6 mm diam. Flowers spring.

DunT, EGL, GipP, Glep, GGr, LoM, MuM, NIS, OtP, VVP, Wim. Also WA, SA, NSW, Tas. Mostly in seasonally wet, sandy situations in the south-west where not uncommon (e.g. Natimuk, Grampians, Glenelg River areas), with scattered near-coastal records in the east (Port Phillip, Westernport, Seaspray, Marlo etc.).

Isolepis stellata can be recognised by the stout, recurved mucro at the glume apex.

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.
Updated by: Val Stajsic, 2017-11-14
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Cyperaceae
genus Isolepis
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Isolepis stellata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Isolepis stellata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales