Isolepis gaudichaudiana Kunth

Enum. Pl. 2: 201 (1837) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Small tufted annual or possibly perennial. Culms filiform, 3–15 cm high. Leaf-blades to 4 cm long. Spikelets 2–8 per inflorescence, rarely a solitary spikelet, 3.5–6 mm long; involucral bract 1–6 cm long (usually at least one-third as long as culm, often as long as culm); glumes obtuse, shortly mucronate, sides indistinctly and irregularly several-nerved, whitish to straw-coloured, 1.2–2 mm long; stamen 1; style 3-fid. Nut ± equally trigonous, angles well-defined, ellipsoid to broad-ellipsoid, minutely pitted, glistening, straw-coloured, about half as long as glume, 0.6–0.8 mm long, 0.5–0.7 mm diam. Flowers summer.

CVU, EGL, EGU, GipP, Gold, HNF, MonT, SnM, VAlp. Also NSW, ACT, Tas. Apparently uncommon, known from a few scattered records from the coast to subalps, where occurring in moist open situations.

Apparently intermediate in characters between Isolepis inundata and I montivaga. Isolepis montivaga has very similar spikelets but differs in having 2 or 3 stamens and a larger nut (to c. 1.3 mm long, about two-thirds as long as glume), which is unequally trigonous with the third angle often not clearly defined, and darker yellow to grey-brown. Isolepis inundata has a solitary stamen like I. gaudichaudiana, but the involucral bracts are always much shorter (to 1.5 cm long) than the culms, unlike both I. montivaga and this species.

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, 2017-11-13
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 gaudichaudiana in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Isolepis gaudichaudiana in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
Goldfields present native
Central Victorian Uplands present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Northern Fall present native
Monaro Tablelands present native
Victorian Alps present native
Snowy Mountains present native

State distribution

Distribution map
New South Wales
Australian Capital Territory