Colonies have many shapes varying from upright bushes to thick plates. There is a continuous range of shape and size between axial and radial corallites; both may be tubular to nearly spherical, with very thick walls. Tubular axial corallites often have no radial corallites on one side and pocket-like radial corallites on the other. All corallites are smooth and rounded.
Usually pale blue or brown. Axial corallites are usually whitish.
Upper reef slopes but occurs in a wide range of environments.
Taxonomic note: This species is divisible into several smaller semi-distinct taxonomic units. Source reference: Veron (2000). Taxonomic references: Veron and Wallace (1984), Wallace (1999). Additional identification guides: Veron (1986), Nishihira and Veron (1995).
displaying probable distribution of species. Points indicate recorded sightings from OBIS.