Threat: High threat environmental weed.
Description: A small perennial tree or large shrub, 4–12 metres tall, often with a dense rounded form and large branches, and native to eastern New South Wales.
Flowers: Round bright yellow flower heads July to September.
Fruits: Hard black seeds form in long straight narrow pods 5–11cm long x 4–7mm wide.
Leaves: Leaves are mid green, bipinnate (fine, ‘fern-like’) with well separated individual leaflets (pinnae) with regular glands that extend through the middle of the rachis (main stem).
Stems: Winged ridges extend from the base of the leaf on both sides down the length of the branch which gives the branch a squarish angular appearance. Bark can be smooth to deeply fissured, brown or dark grey to blackish.
Note: A relatively short-lived species which declines in vigour after 10–15 years.
Similar indigenous species: Late Black Wattle (Acacia mearnsii) or Silver Wattle (Acacia dealbata). Early Black Wattle is distinguished by more open arrangement of leaflets.
Control measures: Cut and paint or drill/frill and fill with suitable herbicide.
Dispersal: Ants, birds.