Flora of Victoria

Tree to 15 m high, spreading; bark smooth and greenish-brown on young branches, blackish and rough on trunk; branchlets angular, pubescent. Leaves bipinnate, olive-green; rachis 4–15 cm long, grooved, pubescent, with a raised gland at the junction of each pinna pair and additional glands irregularly spaced between successive pairs; pinnae in 8–25 pairs; pinnules in 30–70 pairs, crowded, linear-oblong, 1–5 mm long, 0.5–0.8 mm wide, within a single pinna more or less equal in length, pubescent (mostly around margins), apex obtuse. Inflorescence a raceme or panicle; heads globular, 20–30-flowered, pale yellow, peduncles to 8 mm long. Pod more or less straight, 5–10 cm long, 5–8 mm wide, strongly constricted between seeds, dark brown to black. Flowers Sep.–Nov.

CVU, DunT, EGL, EGU, GipP, Glep, Gold, GGr, HNF, HSF, MonT, MuF, NIS, OtP, OtR, SnM, Strz, VAlp, VRiv, VVP, WaP, WPro, Wim. Also SA, Tas. Widespread and common in lowlands. Grows in open forest, heathy woodland and on cleared land, particularly on dry, shallow soils.

The presence of glands at the junction of, as well as between, the pinna pairs distinguishes A. mearnsii from A. dealbata. Acacia mearnsii is usually later flowering than both A. dealbata and A. decurrens.

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.

life Life

kingdom Plantae

phylum Tracheophyta

class Magnoliopsida

superorder Rosanae

order Fabales

family Fabaceae

genus Acacia

Higher taxa

species Acacia mearnsii De Wild.

Synonyms

Racosperma mearnsii (De Wild.) Pedley

Victoria

**Source:** AVH (2014). *Australia's Virtual Herbarium*, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Acacia mearnsii in AVH ; *Victorian Biodiversity Atlas*, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Acacia mearnsii 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
Wilsons Promontory	present	native
Highlands-Southern Fall	present	native
Highlands-Northern Fall	present	native
Otway Ranges	present	native
Strzelecki Ranges	present	native
Monaro Tablelands	present	native
Victorian Alps	present	native
Snowy Mountains	present	native

Bioregions of Victoria

State distribution

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

Acacia mearnsii De Wild.

Black Wattle

Synonyms

Victoria

State distribution