Flora of Victoria

Erect annual to c. 1.2 m high. Stems angled or grooved, glandular pubescent, sometimes reddish. Roots reddish. Leaves long-petiolate, ovate to rhombic, lamina 2–14 cm long, 1–8 cm wide; margin often crenulate and/or undulate; apex sometimes shortly mucronate. Spikes dense, crowded toward the ends of branches and in upper axils, to c. 10 cm long, 1–2 cm diam., greenish or reddish. Flowers unisexual; longest bracts and bracteoles lanceolate, 3–5 mm long, spinescent; tepals 5, oblong, 1.5–3 mm long, obtuse, truncate or emarginate, often shortly mucronate; stamens 5. Utricle circumsciss, subequal to perianth; seed discoid, brown, shiny, 1–1.5 mm diam. Flowers Feb.–May.

*CVU, *GipP, *Gold, *HSF, *MuF, *MuM, *NIS, *VRiv, *VVP, *WaP, *Wim. Also naturalised WA, NT, SA, Qld, NSW, ACT. Native to North America. Occasional weed of paddocks, gardens and disturbed open ground, mostly near cities (e.g. Horsham, Ballarat, Melbourne, Shepparton areas).

Source: Walsh, N.G. (1996). Amaranthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.

Updated by: Val Stajsic, 2018-04-18

life Life

kingdom Plantae

phylum Tracheophyta

class Magnoliopsida

superorder Caryophyllanae

order Caryophyllales

family Amaranthaceae

genus Amaranthus

Higher taxa

species Amaranthus retroflexus L.

Victoria

**Source:** AVH (2014). *Australia's Virtual Herbarium*, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Amaranthus retroflexus in AVH ; *Victorian Biodiversity Atlas*, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Amaranthus retroflexus in Victorian Biodiversity Atlas

Bioregion	Occurrence status	Establishment means
Murray Mallee	present	naturalised
Wimmera	present	introduced
Victorian Volcanic Plain	present	naturalised
Victorian Riverina	present	naturalised
Murray Fans	present	introduced
Gippsland Plain	present	naturalised
Warrnambool Plain	present	introduced
Goldfields	present	naturalised
Central Victorian Uplands	present	naturalised
Northern Inland Slopes	present	naturalised
Highlands-Southern Fall	present	naturalised

Bioregions of Victoria

State distribution

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

Amaranthus retroflexus L.

Redroot Amaranth

Victoria

State distribution