Marrubium vulgare L.

Horehound

Sp. Pl. 583 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Soft-wooded shrubs to c. 60 cm high, usually many-branched from near base; branches c. grey-villous with stellately branched hairs. Leaves c. rhombic-ovate to orbicular, c. 1–3.5 cm long, 1–3 cm wide, upper surface woolly to glabrescent, with impressed reticulate venation, lower surface grey-villous, apex obtuse, base broadly cuneate to truncate, margin crenate-serrate to deeply dentate; petiole 2–40 mm long. Pseudowhorls usually 10–many-flowered; bracteoles linear, c. 3–8 mm long, recurved at apex. Calyx 4–7 mm long, lobes narrow, hooked, c. 1–2 mm long, alternating shorter and longer; corolla white, 6–12 mm long; stamens inserted near middle of corolla-tube. Mericarps narrow-obovoid, c. 2 mm long, trigonous, minutely tuberculate. Flowers Jul.–Dec.

*Brid, *CVU, *DunT, *EGL, *EGU, *GipP, *Glep, *Gold, *GGr, *HNF, *HSF, *LoM, *MonT, *MuF, *MuM, *MSB, *NIS, *OtP, *RobP, *VAlp, *VRiv, *VVP, *WaP, *WPro, *Wim. Also naturalised WA, SA, Qld, NSW, Tas., New Zealand. Native almost throughout Europe. A widespread and troublesome weed, particularly on alkaline soils and degraded or overgrazed pasture, sometimes colonizing bare, eroded ground.

Stock generally avoid grazing the species, but will browse it in the absence of alternative feed resulting in the tainting of meat or milk from those animals.

Source: Conn, B.J. (1999). Lamiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Lamiales
family Lamiaceae
genus Marrubium
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Marrubium vulgare in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Marrubium vulgare in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present naturalised
Murray Mallee present naturalised
Wimmera present naturalised
Glenelg Plain present naturalised
Bridgewater present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Murray Scroll Belt present naturalised
Robinvale Plains 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
Greater Grampians present naturalised
Dundas Tablelands present naturalised
Northern Inland Slopes present naturalised
East Gippsland Lowlands present naturalised
East Gippsland Uplands present naturalised
Wilsons Promontory present introduced
Highlands-Southern Fall present naturalised
Highlands-Northern Fall present naturalised
Monaro Tablelands present naturalised
Victorian Alps present naturalised

State distribution

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