Acacia dealbata Link

Silver Wattle

Enum. Hart. Berol. Alt. 2: 445 (1822) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Tree to 30 m high or spindly shrub; bark usually smooth (fissured at base of old trunks only), grey-green or dark grey to almost black; branchlets with waxy bloom, angular, slightly ribbed, minutely hairy. Leaves bipinnate, greyish-green; rachis 4–10 cm long, angular, pubescent, with a raised gland at the junction of each pinna pair; pinnae in 8–20 pairs; pinnules in 10–68 pairs, crowded, linear-oblong, 2–5 mm long, c. 0.5 mm wide, within a single pinna more or less equal in length, minutely pubescent, apex more or less acute. Inflorescence a raceme or panicle; heads globular, 25–35-flowered, bright yellow, peduncles c. 5 mm long. Pod straight or slightly curved, flattish, 5–9 cm long, 8–12 mm wide, slightly constricted, light brownish-purple, often with whitish bloom.

CVU, DunT, EGL, EGU, GipP, Glep, Gold, GGr, HFE, HNF, HSF, MonT, MuF, NIS, OtP, OtR, SnM, Strz, VAlp, VRiv, VVP, WaP, Wim.

Acacia dealbata is characterized by its greyish-green foliage, differing from A. mearnsii in having prominent raised glands at the junction of each pinna pair but not between them, and from the naturalised A. decurrens by its hairy, greyish-green coloured, crowded pinnules. It apparently hybridizes with the naturalised A. baileyana.

Fast growing and sometimes cultivated. A source of gum arabic substitute.

Source: Entwisle, T.J.; Maslin, B.R.; Cowan, R.S.; Court, A.B. (1996). Mimosaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2021-03-17
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Fabales
family Fabaceae
genus Acacia
Higher taxa
Subordinate taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Acacia dealbata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Acacia dealbata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native
Monaro Tablelands present native
Highlands-Far East present native
Victorian Alps present native
Snowy Mountains present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory