Pentameris airoides subsp. airoides

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Delicate tufted annual, culms erect, to 20 cm high. Leaves pilose overall and with small, saucer-shaped outgrowths on the margins and major veins; blade flat or somewhat incurved, to 4 cm long and 1.5 mm wide; ligule ciliate, c. 0.5 mm long with tufts of longer hairs at the sides. Inflorescence an ovoid panicle, up to 5 cm long and wide when expanded; panicle branches mostly in threes, bearing indented swellings along the internodes. Spikelets 2-flowered, 3–4 mm long (excluding awns), the florets not exceeding the subequal, gaping, acuminate glumes; lemmas oblong, 2–3 mm long, glabrous except for a few hairs on the callus, central awn shining brown, 5–8 mm long, bent above halfway, lateral awns pale, c. 2 mm long, remaining straight; palea narrowly oblong, about as long as body of lemma; anthers 0.5–1 mm long. Flowers Sep.–Nov.

*CVU, *DunT, *EGU, *GipP, *Gold, *GGr, *HSF, *LoM, *MuF, *MuM, *MSB, *NIS, *RobP, *VRiv, *VVP, *Wim. Occurs on sand or dry, skeletal soils, predominantly in the west but with a few eastern disjunctions in rain-shadow areas.

Pentameris airoides is remarkable for its strong superficial resemblance to the widespread genus Aira which is in the tribe Aveneae.

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 (as Pentaschistis airoides (Nees) Stapf).
Updated by: Val Stajsic, 2019-12-24
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Pentameris
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Pentameris airoides subsp. airoides in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pentameris airoides subsp. airoides in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present naturalised
Murray Mallee present naturalised
Wimmera present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Murray Scroll Belt present naturalised
Robinvale Plains present naturalised
Murray Fans present naturalised
Gippsland Plain present naturalised
Goldfields present naturalised
Central Victorian Uplands present naturalised
Greater Grampians present introduced
Dundas Tablelands present naturalised
Northern Inland Slopes present naturalised
East Gippsland Uplands present naturalised
Highlands-Southern Fall present naturalised

State distribution

Distribution map
Western Australia
South Australia
New South Wales