This is a hard stony colonial coral that forms large cushion shapes similar to bushes. The solid calcareous exoskeleton varies depending on depth and is flatter in shallower waters and rounder when deeper. The polyps are quite large on a relatively small base. The numerous tentacles are pointed and slightly warty and the bright orange colour is unmistakable.
This species has a subtropical affinity and prefers water that isn't too cold. Reproduction is sexual and larva are produced between April and August. After a period of life amongst plankton, the larva move to the seabed and begin to form a colony that grows by means of gemmation. As with all Anthozoas, this species is also carnivorous and feeds on plankton.