Rorippa gigantea (Hook.f.) Garn.-Jones

Forest Bitter-cress

New Zealand J. Bot. 16: 119 (1978) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Usually annual, to 120 cm high, decumbent to erect, glabrous. Leaves sessile (but often narrowed almost to midrib in lower portion), sagittate, oblong to lanceolate, to 12 cm long. Sepals 0.5–3 mm long; petals 2–5 mm long, white; stamens 6. Fruit spreading to horizontal, linear, straight, 12–35 mm long (excluding style), 1.5–2 mm wide; style 2–3 mm long; pedicels horizontal, 3–8 mm long; seeds in 1 row per locule, coat reticulate, mucilaginous when wet (mucilage drying to whitish film). Flowers mostly spring–summer.

CVU, EGL, EGU, GipP, GGr, HFE, HNF, HSF, MonT, OtP, OtR, Strz, VAlp, WPro. Also Qld, NSW, Tas. Naturalized New Zealand. Widespread in forests, particularly in the east of the State.

The non-pinnate leaves with a sagittate base and the short pedicels readily separate this species from R. dictyosperma.

Source: Entwisle, T.J. (1996). Brassicaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Brassicales
family Brassicaceae
genus Rorippa
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Rorippa gigantea in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Rorippa gigantea in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
Otway Plain present native
Central Victorian Uplands present native
Greater Grampians 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
South Australia
New South Wales
Australian Capital Territory