Perennial deciduous rhizomatous fern. Fronds are < 3 m long, bi-pinnate and dimorphic, with sterile pinnae at base and reduced fertile pinnae at apex. Sporangia clusters are borne on fertile fronds during spring – autumn.
To help protect our environment:
Wetlands, still or slow-moving water body margins and flood zones, sand dunes, ditches, semi-open canopy forests.
Spores dispersed by wind.
Forms dense stands and is likely to compete with native vegetation and restructure habitat. Potential to obstruct access, reduce enjoyment of and impact mauri of wai māori.
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. Ensure correct identification and it is not a native fern.
Do not attempt to undertake control of this species on Aotea/Great Barrier Island group. Please report to Auckland Council if seen on Aotea/Great Barrier Island group.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.