Bromus catharticus var. rupestris (Speg.) Planchuelo & P.M.Peterson

Novon 8: 54 (1998) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Culms erect, to c. 60 cm high. Leaves pilose; blade flat or folded, to 25 cm long and 5 mm wide; ligule 2–3 mm long. Inflorescence a narrow, contracted panicle with branches more or less appressed to axis, 10–15 cm long. Spikelets 10–20(–24) mm long, 5–6.5 mm wide (when fully expanded, but prior to breaking up at maturity); lower glume 5–11 mm long, upper glume 6–12 mm long; lemma 7–15 mm long, smooth or minutely scabrous along keel, otherwise glabrous (in our specimens, but described as sometimes sparsely pilose); awn absent or rudimentary (to 1 mm long).. Flowers Oct.–Dec. (3 records).

*GipP, *VVP. Apparently rare in Victoria, the few collections (Avalon near Geelong, Coode Is near the mouth of the Yarra River) suggesting a preference for slightly saline situations, but also collected from a local park in Brighton, where growing in occasionally-mown lawn. Native to Argentina. Also naturalised NSW, Tas.

Of the 3 varieties of B. catharticus, this is the smallest in stature and in spikelet length. It has relatively broader spikelets than the other varieties and consistently pilose leaves.

Created by: Neville Walsh, 2015-07-15
Updated by: Val Stajsic, 2016-03-10
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Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Bromus catharticus var. rupestris in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Bromus catharticus var. rupestris in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present introduced
Gippsland Plain present introduced

State distribution

Distribution map
Western Australia
New South Wales
Australian Capital Territory