Characters: Colonies are wide flat plates and tables or tiered aggregations of small plates. Branchlets are thin and finely structured except where exposed to wave action, when they become closely fused. Branchlets are fine and upward-projecting. Axial corallites are distinct but not exsert. Radial corallites are cup-shaped and form rosettes.
Colour: Uniform cream, brown, grey or green with or without blue (which may photograph pink) growing margins.
Habitat: Upper reef slopes and outer reef flats.
Abundance: One of the most abundant corals of exposed outer reef slopes of much of the western Pacific.
Taxonomic Note: A species complex.