Diplazium australe (R.Br.) N.A.Wakef.

Victorian Naturalist 58: 142 (1942) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Rhizome short, stout, erect to oblique, covered in scales; old stipe bases retained, sometimes forming small trunk to 20 cm tall. Fronds clustered, erect to drooping, 50–150 cm long. Stipe about equal in length to lamina, coarse, base expanded, fleshy when young, green to brown, flattened on upper surface, grooved; scales papery, ovate, acuminate, numerous near base, scattered above and on rachises. Lamina 2–3-pinnate, broadly triangular, mid-green, glabrous and soft; grooves on upper surface of rachises and midribs confluent, with raised flanges formed at the junctions. Primary pinnae shortly stalked, oblong, 15–40 cm long, apices narrowing; secondary pinnae lobed or pinnate, rachises winged; pinnules sessile, oblong, lobed or bluntly toothed; veins simple or forked. Sori obliquely angled to midvein, oblong, basal sori often paired; indusium membranous, inflated, sausage-shaped, opening to leave irregularly torn edges.

CVU, EGL, EGU, GipP, HFE, HNF, HSF, MonT, OtP, OtR, Strz, VAlp, VVP, WaP, WPro. Found in wetter, deeply shaded, forests, gullies and creek-flats in southern Victoria.

Characterized by large tufted fronds with a soft, thin glabrous lamina, and a rachis groove that continues into the mid-vein of the pinnae and has a distinctive green flange.

Source: Entwisle, T.J. (1994). Ferns and allied plants (Psilophyta, Lycopodiophyta, Polypodiophyta). In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne (as Allantodia australis R.Br.).
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
order Polypodiales
family Athyriaceae
genus Diplazium
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Diplazium australe in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Diplazium australe in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Central Victorian Uplands present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Wilsons Promontory present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native
Monaro Tablelands present native
Highlands-Far East present native
Victorian Alps present native

State distribution

Distribution map
New South Wales
Australian Capital Territory