Features: colonies are clusters corymbs. The horizontal branches are fine and radiate. The branches that are projected to top are very very fine. The axial and radial corallites are not well differentiated towards the top of the branches. The radial corallites on both sides of the branches are nariformi, with lips slightly flared.
Color: usually gray-brown or light blue or yellow. The tip of the branches may be yellow, deep green, blue or brown.
Similar species: A. elegantula . (See also other species which are flat and irregular corymbs, especially latistella A. and A. subula . These species are well distinguished by the shape of the colony, the axial corallites well trained and for tubular radial corallites and close).
Habitat: top of the reefs and lagoons.
Wild: usually common Indus-central Pacific, uncommon elsewhere.
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