Home > Marine Life > Green Seaweeds > Avrainvillea amadelpha

Updated 3/19/2014

Family Udoteaceae


Avrainvillea amadelpha  

Pokai Bay, Oahu, 15 feet


Wailupe, Oahu, 2 feet


Makai Pier, Oahu, 15 feet

Sand Island, Oahu, 10 feet


Alien invasive species that grows in sandy mud as clumps from a bulbous holdfast.  Stiff blades trap silt and transform reefs into mudflats.  Also forms dense meadows in deep water.  Accidentally introduced to Hawaii around the 1980's.  Native to the Indo-Pacific.