Maireana decalvans (Gand.) Paul G.Wilson

Black Cotton Bush

Nuytsia 2: 46 (1975) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Weakly erect shrub to c. 40 cm high; branchlets sparsely to moderately densely covered with cottony hairs. Leaves alternate, linear, terete, 5–11 mm long, fleshy, glabrous. Flowers bisexual, glabrous or ciliate on margins of lobes. Fruiting perianth 6–10 mm diam., perianth lobes slightly enlarged; tube shallowly hemispherical, 2.5–3 mm diam., thin-walled, truncate or slightly domed at apex; wing horizontal, flat or nearly so, radially streaked with fine brown anastomosing veins when dry; radicular slit present on wing but not extending down tube. Fruits Feb.–Jul.

CVU, MuF, MuM, MSB, OtP, RobP, VRiv, VVP, Wim. Also SA, Qld, NSW. Scattered on clays and other heavy, fertile soils chiefly along the Murray River floodplain downstream of about Echuca, but with more southerly occurrences in the mid-west of the state (e.g. Horsham, Maryborough, St Arnaud) and in the Melbourne-Bacchus Marsh area. Often a coloniser of disturbed ground.

Source: Walsh, N.G. (1996). Chenopodiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-11-15
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
genus Maireana
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Maireana decalvans in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Maireana decalvans in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native
Otway Plain present native
Central Victorian Uplands present native