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Initially introduced for dune stabilisation but instead causes large, steep dunes.
An extremely tough, thin densely tufted, perennial tussock grass that grows up to 70cm tall.
Native to South America and was accidentally introduced to NZ in the late 1800’s.
Originally from the Americas it was introduced to New Zealand primarily as a turf grass for coastal golf courses.
A clumping grass that is found in inter-tidal zones of coastlands and wetlands.
A tufted perennial grass with whorled branches that are bamboo-like in appearance.
Egeria doesn’t produce seed, instead it spreads through fragments breaking off and settling in new sites.
Lagarosiphon is one of the more ‘common’ oxygen weeds, made popular through the aquarium trade.
Marshwort colonises shallow waters, rapidly forming dense mats which cover waterways.
Introduced to New Zealand as an ornamental pond plant, it forms dense mats of floating leaves over large areas.