Adiantum diaphanum Blume

Filmy Maidenhair

Enum. Pl. Javae 215 (1828) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: endangered (e); listed in Flora and Fauna Guarantee Act 1988

Rhizome short, covered with reddish-brown scales; fibrous roots with numerous, small, tuberlike swellings. Fronds tufted, erect to drooping, 8–22 cm long. Stipe relatively long, slender, almost black, smooth; scales few near base, pale. Lamina either pinnate and narrowly triangular or with 1–2 finger-like lobes near base; rachises very slender, dark, shiny and glabrous. Pinnules finely stalked at lower "corners", close-set, asymmetrical, sub-rhomboid to oblong, 3–14 mm long, 2–7 mm wide; minute stiff brown hairs on both surfaces; lower margins straight or slightly concave, entire, upper and outer margins broadly rounded with shallow lobes or teeth. Sori 2–10, mostly 5–10, small, in notches between lobes, covered by kidney-shaped to circular reflexed leaf flap which is covered with minute brown hairs.

GipP, HSF, Strz. Also Qld, NSW, Norfolk Is. New Zealand, Fiji, southern China. Rare in Victoria and restricted to the Strzelecki Ranges of south Gippsland. It forms small colonies near waterfalls, on wet rock faces and banks.

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.
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
order Polypodiales
family Pteridaceae
genus Adiantum
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Adiantum diaphanum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Adiantum diaphanum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
Highlands-Southern Fall present native
Strzelecki Ranges present native

State distribution

Distribution map
New South Wales
Australian Capital Territory