Brassica rapa L.


Sp. Pl. 666 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Annual or biennial. Taproot stout or tuberous. Stems erect, to 1 m high, herbaceous, branched, usually with stiff bristles. Basal leaves petiolate, pinnately lobed, bright green, with stiff bristles; upper leaves sessile, oblong-lanceolate, becoming glabrous, base dilated and deeply cordate, clasping stem. Inflorescence with open flowers overtopping or equalling buds. Sepals erect to inclined, 4–6 mm long; petals 6–11 mm long, bright yellow; outer stamens with filaments curved outwards at base; ovary sessile. Fruit obliquely erect, 4–7 cm long (including beak), c. 3 mm wide, somewhat constricted between seeds; valves somewhat flattened, midrib prominent, lateral veins obscure, parallel; beak 7–22 mm long, seedless or rarely with 1 seed; pedicel 5–30 mm long; seeds 1–2 mm wide, red to black-brown. Flowers mainly spring and autumn.

*CVU, *EGL, *GipP, *Glep, *Gold, *HNF, *HSF, *MuF, *OtP, *OtR, *Strz, *VRiv, *VVP, *WaP, *Wim. Also naturalised WA, SA, Qld, NSW, ACT, Tas. Native to Europe and Asia. Widely cultivated and established as a weed; exact distribution uncertain due to lack of precise records.

The cultivated Turnip with a tuberous taproot is var. rapa. Most naturalised plants, however, belong to var. sylvestris (Lam.) Briggs (Rapeseed).

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.
Updated by: Val Stajsic, 2018-10-01
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Brassicales
family Brassicaceae
genus Brassica
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Brassica rapa in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Brassica rapa in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Wimmera present naturalised
Glenelg Plain present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Murray Fans present naturalised
Gippsland Plain present naturalised
Otway Plain present naturalised
Warrnambool Plain present naturalised
Goldfields present naturalised
Central Victorian Uplands present naturalised
East Gippsland Lowlands present introduced
Highlands-Southern Fall present naturalised
Highlands-Northern Fall present naturalised
Otway Ranges present naturalised
Strzelecki Ranges present naturalised

State distribution

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