Stachys arvensis (L.) L.

Stagger Weed

Sp. Pl., edn 2, 814 (1763) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Weak annual herb to 35 cm high; branches with spreading septate hairs usually mixed with glandular hairs toward inflorescence. Leaves ovate to broadly ovate, c. 1–4 cm long, 1–3 cm wide, surfaces with scattered soft spreading eglandular hairs, apex obtuse, base cordate or truncate (rarely cuneate); petiole 0–3 cm long. Inflorescence with (1–)3 flowers per bract or leaf-axil. Calyx 10-veined, 5–7 mm long, with long spreading hairs, often purplish, lobes pointed, about as long as tube; corolla white or pale pink, tube c. as long as abaxial lobe; lower pair of stamens longer than upper. Flowers mainly May–Nov.

*CVU, *EGL, *GipP, *HNF, *HSF, *MonT, *MuF, *NIS, *VRiv, *VVP. Also naturalised WA, SA, Qld, NSW, Tas. Native to south-western and central Europe. Principally a weed of irrigated cropland, occasional on roadsides and wasteland.

Suspected of causing 'staggers', and in severe cases mortality, in livestock.

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.
Updated by: Val Stajsic, 2018-08-17
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Lamiales
family Lamiaceae
genus Stachys
Higher taxa

Victoria

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

State distribution

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