Mangroves are currently found only on Wallis (there are no mangroves on Futuna or Alofi) in a few protected bays, reaching a height of 3 to 4 m. They are of very restricted distribution quite thick, but floristically poor. There are a few clumps of Acrostichum aureum in the undergrowth. The forests are composed of Rhizophora mangle, Rhizophora samoensis and Bruguiera gymnorrhiza. They are distributed especially on the south-western shore between Mua Point and Malaetoli, and on the western shore between Ahoa and Utulea. They are also present at two points on the eastern coast, and on Faioa Islet. In the transition zone between mangrove and littoral vegetation, Acrostichum aureum is abundant.
Mueller-Dombois, D. & F. R. Fosberg. 1998. Vegetation of the tropical Pacific islands. Springer-Verlag, New York. 733 pp.
IFRECOR. nd. State of the environment in Wallis and Futuna http://www.environnement.gouv.fr/ifrecor/domtom/wfstata.htm
No quantitative information has been identified for the extent of mangroves for Wallis and Futuna Islands.