Small, stringy, many-branched perennial herb < 50 cm tall and < 1 m in diameter. Leaves are thin, green and hairy. Flowers are small, spherical and yellow, and form tough, hooked brown spheres.
To help protect our environment:
Open and disturbed habitats, exposed dry outcrops, rocky areas, grassland, pasture, scrubland, woodland.
Seeds dispersed by wind and attachment to animal pelts. Human-mediated dispersal through attachment to clothing and machinery.
Displaces desirable pasture species and is a serious contaminant of wool. May compete with similar native plants in dry rocky outcrops or open disturbed ecosystems.
Maintaining good pasture cover will suppress an infestation.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.