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1. Undaria pinnatifida (aquatic plant, alga)  English     
The kelp (Undaria pinnatifida) is native to Japan where it is cultivated for human consumption. It is an opportunistic weed which spreads mainly by fouling ship hulls. It forms dense underwater forests, resulting in competition for light and space which may lead to the exclusion or displacement of native plant and animal species.
Common Names: apron-ribbon vegetable, Asian kelp, haijiecai, Japanese kelp, miyeuk, qundaicai, wakame
Synonyms: Alaria pinnatifida Harvey1860, Ulopteryx pinnatifida (Harvey) Kjellman 1885

ISSG Landcare Research NBII IUCN University of Auckland