Sharp, spiny perennial shrub < 4 m tall. Tap root is very deep, with extensive lateral roots. Leaves are reduced to a spine-like tip. Flowers are pea-like, yellow and borne in May – November. Seed pods are hairy and turn black.
To help protect our environment:
Grassland, shrubland, forest margins, plantations, hill country, coastal habitats, sand dunes, wastelands.
Seeds dispersed by explosive dehiscence, water and birds. Human-mediated dispersal through contamination of gravel and machinery.
Forms dense stands and outcompetes native vegetation. Alters vegetation composition and native diversity. Reduces food for livestock. Nitrogen fixer. Can impede access to recreational and culturally important sites.
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.