Colonies are wide, flat, tiered plates and tables which commonly have lobed margins. Branches are outward projecting at the colony margins, but curved, tapered, and upward projecting elsewhere. Axial corallites are distinctive, radial corallites are immersed and have a rosette arrangement.
Grey or green, with a broad white border to plates.
Common at the Houtman Abrolhos Islands, south-west Australia, uncommon elsewhere.