Holcus annuus Salzm. ex C.A.Mey.

Verz. Pfl. Casp. Meer. 17 (1831) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Slender, few-leaved annual to 40 cm high. Leaves softly hairy; blade to 10 cm long and 1–5 mm wide; ligule obtuse, 1–4 mm long. Inflorescence ovate to oblong, 2–8 cm long. Spikelets 3–4.5 mm long (excluding awns); glumes subequal, enclosing florets, hairy along keel, purplish when young, both with a fine apical awn 2–4 mm long; lemma of bisexual lower floret c. 2 mm long, awnless; lemma of upper floret often sterile, c. 1.2 mm long, with a strongly bent awn c. 2 mm long. Flowers Nov.–Feb.

*CVU, *DunT, *Gold, *GGr, *HNF, *HSF, *NIS, *OtP, *OtR, *VRiv, *VVP, *Wim. The number of recent collections of this grass suggests that its range is increasing, particularly through the drier Midlands (e.g. Creswick area) where it has become a major weed of grass-seed crops.

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 Holcus setosus Trin.).
Updated by: Daniel Ohlsen, 2017-06-15
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Holcus
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Holcus annuus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Holcus annuus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Wimmera present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Otway Plain present naturalised
Goldfields present naturalised
Central Victorian Uplands present naturalised
Greater Grampians present naturalised
Dundas Tablelands present naturalised
Northern Inland Slopes present naturalised
Highlands-Southern Fall present introduced
Highlands-Northern Fall present naturalised
Otway Ranges present naturalised

State distribution

Distribution map
South Australia
New South Wales