Bromus catharticus J.Vahl

Prairie Grass

Symb. Bot. 2: 22 (1791) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Introduced

Tufted annual, biennial or perennial, culms erect, to 120 cm high. Leaves glabrous to pilose; blade loosely folded, to 45 cm long and 15 mm wide, scabrous; ligule glabrous, truncate, 1–5 mm long. Inflorescence a panicle to 40 cm long. Spikelets compact, 4–9-flowered, lanceolate to oblong, 10–40 mm long; with florets strongly imbricate and usually strongy laterally compressed; lower glume 3–7-nerved, 8–15 mm long, upper glume (5–)7–9-nerved, 10–18 mm long; lemma 8–24 mm long, including awn, if present, to 10 mm long, strongly keeled, scabrous along keel.

*CVU, *DunT, *EGL, *EGU, *GipP, *Glep, *Gold, *GGr, *HNF, *HSF, *MuF, *MuM, *NIS, *OtP, *OtR, *RobP, *Strz, *VAlp, *VRiv, *VVP, *WaP, *Wim.

The taxonomy of this group is difficult and has resulted in many misapplications of names. Three varieties are recognised, all occurring in Victoria. Variety catharticus is by far the commonest in Victoria.

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.
Updated by: Daniel Ohlsen, 2017-07-07
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Distribution map


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

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales
Australian Capital Territory