Pteris tremula R.Br.

Tender Brake

Prodr. 154 (1810) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native (naturalised in part(s) of state)

Rhizome erect, short and stout, covered with brown scales with long-tapering tips. Fronds tufted, erect, 60–150 (rarely to 200) cm long, soft to firm-textured. Stipe usually more than half the frond length, slender, stiff, chestnut-brown, shiny. Lamina 2–4-pinnate, triangular to ovate-triangular, light green to yellow-green, glabrous or with hairs along lower surface of midveins and rachises; rachises red-brown. Primary pinnae distant, triangular, slightly asymmetric, lower pinnae projecting out from main plane of lamina; secondary pinnae variable, bases decurrent, apices frequently linear. Pinnules oblong to narrowly oblong, sessile, bases decurrent, margins crenately toothed or almost entire; veins relatively distant, simple or forked, free. Sori continuous or disjunct along lateral margins, often to tips and down decurrent bases.

CVU, EGL, EGU, GipP, Glep, Gold, GGr, HNF, HSF, MonT, NIS, OtR, SnM, Strz, VRiv, VVP, WaP, WPro. Also NT, SA, Qld, NSW (including Lord Howe Is.), Tas. (including Flinders Is. and King Is.), Norfolk Is. New Zealand, Polynesia. Widespread in Victoria, growing in a range of habitats from sheltered forested gullies to exposed rocky sites. Occasionally encountered in suburban areas (wall crevices, paths, borders etc.), having spread by spore from garden-grown plants.

In rock crevices or other exposed sites, fronds are firm and often stunted. The width of the ultimate segments is quite variable, but they are generally narrower than those of P. epaleata.

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.
Updated by: Val Stajsic, 2020-12-21
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
order Polypodiales
family Pteridaceae
genus Pteris
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Pteris tremula in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pteris tremula in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Gippsland Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Northern Inland Slopes 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
Snowy Mountains present native

State distribution

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