Anisopogon avenaceus R.Br.

Oat Spear-grass

Prodr. 176 (1810) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Tufted, shortly rhizomatous perennial, culms simple, erect, to 1.3 m high, nodes glabrous. Leaves glabrous; blade flat, inrolled or involute, to 40 cm long and 6 mm long, smooth except for the finely scabrous nerves and margins of the upper surface; ligule a ciliate collar to 1.5 mm long. Inflorescence a loose panicle of up to 8 large, pendulous spikelets. Spikelets 35–70 mm long (excluding awns); glumes opaque, green, becoming straw-coloured, narrowly oblong and truncate at apex, the lower up to 12 mm shorter than upper; floret narrowly cylindric, 10–18 mm long; lemma pale at maturity, entirely covered with short silky hairs; callus 4–6 mm long; central awn once bent, 60–110 mm long, twisted in the lower half, lateral pair of awns erect or slightly spreading, straight or spirally twisting, 25–40 mm long; palea exceeding body of lemma by up to 5 mm. Flowers Oct.–Nov.

EGL, EGU, GipP, HSF. Also NSW. Occurs predominantly on sandy or granitic soils in near-coastal heaths and heathy forests east from the western limit of the Ninety Mile Beach.

Source: Walsh, N.G. (1994). Poaceae. 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 Poaceae
genus Anisopogon
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Anisopogon avenaceus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Anisopogon avenaceus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Southern Fall present native

State distribution

Distribution map
New South Wales
Australian Capital Territory