Swaziland's Alien Plants Database

Acacia melanoxylon R.Br.
Australian blackwood, blackwood, blackwood acacia
Invasive, Problem species
Origin: South and East Australia, Tasmania
Growth Form: Tree
Plant Description: Plant: Unarmed evergreen tree 8–15(–20) m high; trunk straight, crown dense, pyramidal to cylindrical; similar to A. implexa. Leaves: Phyllodes (mature; immature), greyish turning dark dull-green, ± erect, straight to slightly curved, with 3–7 prominent longitudinal veins and fine net-veins between; often bipinnate on young plants and coppice shoots. Flowers: Pale yellow, globular flowerheads, August–September. Fruit: Reddish-brown pods, narrower than leaves, slightly constricted, twisted; seeds almost encircled by pinkish-red seed stalks.
Key Features:
Control: physical, chemical and cultural techniques, and biological control by means of beetle from Australia
More information:
Weeds & Invasive Plants Home Page

Photo - tree

K Braun, Swaziland's Alien Plants Database

Photo - bark

K Braun, Swaziland's Alien Plants Database

Photo - leaves

K Braun, Swaziland's Alien Plants Database

Photo - flowers/leaves

The Weeds Society of Western Australia

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