Characters: Colonies are flat laminae often forming overlapping tiers. They are sometimes columnar. They may be several metres across. Corallites are immersed to tubular and average 6 millimetres diameter. Polyps are large and tentacles are usually extended during the day. Colour: Usually grey or brown. Similar species: Turbinaria patula. Habitat: Protected environments, especially shallow rocky foreshores with turbid water. Also occurs on shallow reef slopes. Abundance: Common and may be a dominant species.