Weed Habitat

Probably native to Central America, this plant was introduced to Australia around the time of first settlement and is now widespread in Queensland. It invades trampled or overgrazed areas and watercourses.


  • 2-5 m tall, much-branched, rounded, thorny, spreading shrub.
  • Branches in a zig-zag arrangement, usually grey-brown with prominent white dots.
  • Leaves yellowish-green, feathery, 1-6 pairs of branchlets with 5-20 pairs of narrow rounded leaflets 4-9mm long.
  • Sharp straight slender thorns at the base of each leaf.
  • Yellow-orange, ball-shaped flowers are pleasantly perfumed.
  • Pods slightly curved, cigar-shaped, brown to black, 4-6cm long.

Mimosa bush - Acacia farnesiana  Mimosa bush pods - Acacia farnesiana  Mimosa bush leaves - Acacia farnesiana


Currently not declared
although its control is recommended.