Deparia petersenii subsp. congrua (Brack.) M.Kato

Lady Fern

J. Fac. Sci. Univ. Tokyo, Sect. 3 13: 426 (1984) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Rhizome creeping, covered in scales. Fronds relatively close together, erect, 30–80 cm tall. Stipe about equal in length to lamina, fleshy when young, dark green to brown, flattened on upper surface, grooved; scales narrow, pale brown, numerous near base, scattered above; hairs sometimes present. Lamina 1–2-pinnate, oblong to narrowly triangular, mid-green to dark green, with short, soft hairs on upper surface of rachis, veins and veinlets; rachis groove not continuous with groove of lamina midrib. Primary pinnae shortly stalked or sessile, lobed to pinnate; lobes broadly oblong to deltoid, margins crenate to shallowly toothed, apices blunt; veins simple or forked. Sori obliquely angled to mid-vein, linear-oblong, basal sori sometimes paired; indusium membranous, more or less flat (not inflated or arched), opening to leave toothed or irregularly torn margin.

EGL, EGU, GipP, HFE, HNF. Also Qld, NSW, Norfolk Is. New Zealand, found throughout the Asian and Indian region and on many Pacific islands (naturalized in the Americas). Rare in Victoria and confined to a few sites from Buchan eastwards, occurring in wet, shaded forests, river-flats or on damp rock faces.

Kato (1984) recognizes 3 subspecies and 2 varieties of Deparia petersenii. Deparia petersenii subsp. congrua is distinguished from the other two subspecies by the thicker rhizome and stipe, the comparatively close-set, soft fronds, the more or less oblique pinna-segments, and the gradually narrowed, narrowly triangular, long-acuminate leaf apex.

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.
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Distribution map


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Deparia petersenii subsp. congrua in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Deparia petersenii subsp. congrua in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Northern Fall present native
Highlands-Far East present native

State distribution

Distribution map
New South Wales
Australian Capital Territory