Erect, tufted, rhizomatous perennial grass < 4 m tall. Stems are rigid and bamboo-like. Leaves are long, wide, flat, < 60 cm long, alternate, rigid and tapering to a point. Flowers are borne in brown/purple, feathery, drooping inflorescences < 50 cm long. Seeds are covered in silky hairs.
To help protect our environment:
Freshwater and brackish water body margins, coastal areas, wetlands.
Seeds dispersed by wind and water. Vegetative spread from rhizomes and stem fragments. Human-mediated dispersal through deliberate plantings and movement of contaminated soil and machinery.
Forms dense infestations, displacing native vegetation. Clogs waterways and impedes recreational activities.
Do not attempt to undertake control of this species. The Ministry of Primary Industries will carry out the control of this species.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.