Rumex obtusifolius subsp. obtusifolius

Broadleaf Dock

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Perennial with erect stems to c. 1 m high. Basal leaves usually with petioles longer than lamina; lamina oblong-ovate, 12–30 cm long, 6–15 cm wide, cordate at base; margins plane or undulate; upper leaves reduced, relatively narrower than basal ones, and with non-cordate bases. Inflorescence often c. half the height of the plant, branches more or less erect, usually simple and subtended by a leaf; flower 'whorls' mostly separated by c. 1–10 cm, the lower ones usually subtended by a small leaf. Fruiting valves ovate, trullate, triangular or nearly oblong, 3.5–7 mm long, 2–3 mm wide (excluding teeth), reticulate, 1–3-toothed near base (rarely almost entire), usually only 1 valve developing a rounded callosity up to c. one-third as long as valve; fruiting pedicel c. 1.5–3 times as long as valves, jointed in the lower third. Nut 2.5–3.5 mm long.  Flowers mainly Dec.–Mar.

*CVU, *EGL, *EGU, *GipP, *Glep, *Gold, *HFE, *HNF, *HSF, *MuF, *NIS, *OtP, *OtR, *Strz, *VAlp, *VRiv, *VVP. Native to most of Europe, south-west Asia.  Occurs in relatively cool regions of the State, mostly south of the Dividing Range, in ditches, beside creeks and drains etc.

4 subspecies of R. obtusifolius are recognized, but all Australian collections appear referable to subsp. obtusifolius

Source: Walsh, N.G. (1996). Polygonaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Daniel Ohlsen, 2017-05-31
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
family Polygonaceae
genus Rumex
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Rumex obtusifolius subsp. obtusifolius in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Rumex obtusifolius subsp. obtusifolius in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Murray Fans present naturalised
Gippsland Plain present naturalised
Otway Plain present introduced
Goldfields present naturalised
Central Victorian Uplands present naturalised
Northern Inland Slopes present naturalised
East Gippsland Lowlands present naturalised
East Gippsland Uplands present naturalised
Highlands-Southern Fall present naturalised
Highlands-Northern Fall present naturalised
Otway Ranges present introduced
Strzelecki Ranges present naturalised
Highlands-Far East present naturalised
Victorian Alps present naturalised

State distribution

Distribution map
State
Western Australia
South Australia
New South Wales
Australian Capital Territory
Victoria
Tasmania