Colonies are table-like, up to 2 metres across, and consist of masses of fused horizontal branches. Peripheral branches are all horizontal; those towards the colony centre have upturned ends. All branches have blunt ends and are neatly arranged. Radial corallites are usually in two sizes, the larger of which have flaring lips. The coenosteum is coarse, giving a rough appearance to branches.
Green, white, cream, rarely pale brown.
Restricted to shallow fringing reefs and upper reef slopes where Acropora diversity is high.