Digitaria ischaemum (Schreb.) Schreb. ex Muhl.

Smooth Summer-grass

Descr. Gram. 131 (1817)

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Tufted glabrous annual. Culms erect, to 40 cm high. Leaf-blades flat, 2–9 cm long, 2–5 mm wide; sheaths often purplish; ligules obtuse, 1–2 mm long. Panicle of 2–6 winged, one-sided, spike-like racemes, 2–8 cm long, digitately arranged, or with the lower slightly separated. Spikelets acute, 1.7–2.3 mm long, solitary, paired or in small clusters; lower glume lacking or vestigial, to 0.2 mm long; upper glume 3-nerved, equal to or slightly shorter than the spikelet, sparsely to densely covered with fine, club-tipped hairs; lower lemma 5–7-nerved, as long as the spikelet, with hairs like the upper glume; palea of lower floret absent; lemma of upper (bisexual) floret acute, equal to or slightly shorter than spikelet, dorsally rounded, finely striate, brown at maturity. Flowers Feb.–Jul.

*EGL, *EGU, *GipP, *HNF, *HSF, *VAlp, *VVP. Also naturalised in SA, NSW, ACT. Native to warm-temperate regions of Europe and Asia. Naturalised in New Zealand, Britain and North America. In Victoria, an uncommon weed of lawns and disturbed areas near habitation (e.g. Hamilton, Melbourne area, Gelantipy, Cann River).

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: Val Stajsic, 2018-02-19
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Digitaria
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Digitaria ischaemum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Digitaria ischaemum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present introduced
Gippsland Plain present naturalised
East Gippsland Lowlands present introduced
East Gippsland Uplands present naturalised
Highlands-Southern Fall present naturalised
Highlands-Northern Fall present introduced
Victorian Alps present introduced

State distribution

Distribution map
South Australia
New South Wales
Australian Capital Territory