Characters: Colonies may be large (over 4 metres across) and form dense thickets of frequently dividing branches. Branches are 7-9 millimetres thick and slightly tapered. Axial corallites are prominent. Radial corallites are rounded, tubular and appressed except towards branch tips, and are arranged in rows.
Colour: Grey-brown, usually with pale yellow corallite tips.
Similar species: Acropora hemprichii, which has larger radial corallites and does not form colonies with such compact branches. See also A. striata, A. verweyi and A. tumida.
Habitat: Mid reef slopes exposed to strong currents.
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