Sprawling shrub or climber. Stems are thorny. Leaves are bipinnately compound, with 4-10 pinnae pairs each bearing 8-12 leaflets, pale undersides and a prickly main stalk. Flowers are yellow and borne in erect, elongated clusters. Seed pods are dark brown, < 11 cm long and dehiscent.
To help protect our environment:
Disturbed forest, forest and riparian margins, grassland, disturbed sites, pasture, plantations, gardens, roadsides.
Seeds dispersed by water, birds, small mammals and livestock. Human-mediated dispersal through dumping of garden waste and deliberate plantings.
Forms dense thickets, smothering native vegetation and impeding movement of humans and animals.
Follow up treated areas 3 times per year. Encourage natural regeneration of native plants or replant treated areas where possible after 2-3 treatments to establish dense ground cover and minimise reinvasion.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.