Characters: Colonies are encrusting, submassive or branching. Colonies are both zooxanthellate and azooxanthellate, depending primarily on light conditions. Corallites are tightly compacted, mostly circular and up to 10 millimetres diameter. Corallite walls are well defined. Septal margins are beaded. Columellae are well developed.
Colour: Translucent to brown, depending on the presence of zooxanthellae.
Similar Species: Many names have been given to Astrangia poculata indicating that similar species, if any, may be difficult to determine.
Habitat: Rocky shores and jetty pilings. Tolerant of a wide range of temperatures.
Abundance: Uncommon.
Taxonomic References: Peters, Cairns, Pilson et al. (1988); Veron (2000a);
