In the Victorian Volcanic Plains this species often grows as a bushy, small tree in exposed, windy areas but it grows much taller along creeklines. In mountainous areas, it may grow to be a tall forest tree. The dull green phyllodes; flattened leaf-like stems which replace the true leaves as the main photosynthetic structure, are short and may be covered with mealy scales. Of the other indigenous wattles around Melbourne it is easily confused with Lightwood, Acacia implexa.

A bushy medium tree, with a dark canopy. This is one of the Acacias with true leaves which are feathery or 'bipinnate'. Of the other indigenous wattles around Melbourne it is easily confused with Silver wattle, Acacia dealbata. Silver Wattle typically has a silvery or bluish hue to the leaves, is a vigorous,suckering tree found beside streams. The compound leaves of Silver wattle are narrower than Black wattle. Black wattle in contrast is a short-lived tree that does not sucker and typically occurs in drier parts of the landscape than Silver Wattle.