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Na Hulu Manu o Hawai`i 
The Precious Things of Hawai`i
Invasive Species

Australian Tree Fern  

     This highly invasive species should be eradicated from the Hawaiian islands. The tiny spores are windborne and travel miles, putting native ecosystems at risk of being overwhelmed by the highly aggressive species.

     Pest Hotline Page on Australian Tree Fern
     Environmentally responsible nurseries no longer selling Australian tree fern
     The Australian tree fern may be the worst weed in Kauai's forest environment

Thunburgia laurifolia

     A beautiful vine which makes lovely arbors, but also is highly invasive, covering acres of neighboring yards.

     Pacific Island Ecosystems at Risk
     Hawai`i's Most Invasive Horticultural Plants