Characters: Colonies form corymbose plates or irregular clumps. Branchlets are tall, straight or irregular and are slightly tapered. Colonies exposed to wave action have compacted branchlets; those in protected habitats have irregular branches. Axial corallites are prominent. Radial corallites are short and uniform in size. Septa are short and numerous. Tentacles may be partly extended during the day.
Colour: Uniform grey.
Similar species: Acropora latistella, which has prominent radial corallites. See also A. dendrum.
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