Etymology: Latin name Casuarina means “twig” because we can confuse its wired leaf with a branch. From there also comes the name Casoar. The foliage of Casuarina equisetifoliarse to the plumage of Casoar.
Origin: Australia, Indonesia, New Caledonia, Malaysia.

Other Species: C. incana, C. glauca, C. bennetti, C. nana (3 m high), in all about a hundred species.
Habitat: tropical coastal areas.
Life span: 50 years.
Maximum size: 40 m (highest species of Filaos).
Growth: fast (usually 1m per year, but 10m in 2 years were listed in Barbados).
Slender port, summit often bent.
Pale pink bark.
evergreen. Fine needles 15-20 cm long, implanted individually. The natural litter of Filao needles must be removed to allow the Filao forest to regenerate.
Flowers: The flowers are aperian (not having perianth, flowers around the pistil and stamens), grouped in kitten (ear unisex). Each carpel opens independently to give a fruit.