Amaranthus grandiflorus (J.M.Black) J.M.Black

Large-flowered Amaranth

Trans. & Proc. Roy. Soc. South Australia 60: 166, t. 16, fig. 4 (1936) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Erect annual to c. 40 cm high. Stems glabrous or sparsely glandular-hairy on youngest growth. Leaves long-petiolate, narrowly ovate to narrowly rhombic, lamina mostly 1–4 cm long, 4–12 mm wide; apex obtuse to acute, sometimes shortly mucronate. Flowers unisexual, in axillary clusters c. 12 mm diam., sometimes the clusters becoming crowded and almost spike-like toward the branch-tips; bracts and bracteoles ovate, acuminate, 1–2; tepals 5, obovate, 4–7 mm long, recurved toward apex, acute, sometimes with a mucro to c. 1 mm long; stamens 3. Utricle indehiscent, flattened-ellipsoid, slightly shorter than perianth, transversely wrinkled; seed ovate, biconvex, 1.5–2 mm long. Flowers Feb.–Jun.

MuM, MSB. Also NT, SA, Qld, NSW. In Victoria confined to sandy rises and sandy loam flats in the far north-west (e.g. Merbein, Red Cliffs, Koolonong), but uncommon to rare, and probably appearing in numbers only following summer rain.

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


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Amaranthus grandiflorus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Amaranthus grandiflorus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Murray Scroll Belt present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales