Characters: Colonies have prostrate main branches with bottlebrush-like secondary branching producing lobed or cushion-like colonies. Axial corallites are large and rounded. Radial corallites are short, with thick walls.
Colour: Dull greenish-grey or brown with pale brown or orange branch tips.
Similar species: Acropora samoensis, which has shorter branches and distinctive axial corallites. See also A. digitifera.
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