Digitaria ammophila (F.Muell.) Hughes

Silky Umbrella-grass

Bull. Misc. Inform. 1923: 313 (1923) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Shortly rhizomatous perennial. Culms erect, to 60 cm high; base of plant thickened and hairy. Leaves velutinous; blade flat or broadly channelled, 4–15 cm long, 3–7 mm wide, with pale, thickened, often finely undulate margins; ligule truncate, erose, mostly c. 2 mm long. Panicle c. 10–25 cm long, composed of narrow racemes; lower racemes whorled, 5–20 cm long, finally spreading, upper racemes successively shorter. Spikelets 2–3 mm long (not including the dense silky hairs which conceal most segments), mostly paired, on unequal pedicels, the longer pedicel to c. 8 mm; lower glume ovate, c. 0.5 mm long; upper glume 3-nerved, elliptic, as long as the spikelet; lower lemma 5–7-nerved, equal to upper glume, both villous; lower palea vestigial or absent; upper (bisexual) floret subequal to spikelet, lemma elliptic, shortly acuminate, slightly rounded dorsally, smooth or finely striate Flowers Feb.–Apr.

Gold, LoM, MuF, MuM, RobP, VRiv, Wim. All mainland states except ACT. Rare, scattered through northern and north-western Victoria, chiefly along the Murray River floodplain (e.g. Barmah, Lake Powell near Robinvale, Mildura area), a record from Warracknabeal (Willis 1970) is not substantiated by a specimen at MEL.

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
Hero image
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 ammophila in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Digitaria ammophila in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Riverina present native
Robinvale Plains present native
Murray Fans present native
Goldfields present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales