mearnsii (black wattle) is a common shrub or small tree found in
dry forests or woodlands. It has bipinnate leaves. It is sometimes
confused with silver wattle (A. dealbata), but has dark
glossy leaflets (unlike the silvery leaflets of A. dealbata).
The glands are also distinctive (with two glands along the main leaf
axis for each pair of pinnae, rather than one). It flowers later
(mid September/October) than A. dealbata.