Amaranthus macrocarpus var. macrocarpus

Dwarf Amaranth

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Prostrate to decumbent, glabrous annual. Stems to c. 40 cm long. Leaves long-petiolate, elliptic to obovate, lamina mostly 8–20 mm long, 4–15 mm wide; apex usually emarginate, sometimes shortly mucronate. Flowers unisexual, in axillary clusters c. 8 mm diam.; bracts and bracteoles elliptic, to c. 1 mm long, sometimes rudimentary; tepals 3 (occasionally 4 in some flowers on same plant), oblanceolate, 1.5–2.5 mm long, acute; stamens 3. Utricle indehiscent, narrowly ovoid, c. twice as long as perianth, irregularly puckered, at least toward base, blackish; seed elliptic, biconvex, c. 1 mm long.  Flowers Dec.–Mar.

MuF, MuM, MSB, RobP, VRiv. Also NT, SA, Qld, NSW. Rather rare in Victoria, appearing only after summer rains along the Murray River floodplain downstream from about Echuca. Sometimes appearing on roadsides and in railyards where possibly introduced with grain etc.

The pale-fruited var. pallidus Benth. is known only from Queensland and New South Wales.

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
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Distribution map

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Amaranthus macrocarpus var. macrocarpus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Amaranthus macrocarpus var. macrocarpus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native

State distribution

Distribution map
State
Northern Territory
South Australia
Queensland
New South Wales
Victoria