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.
Habitat: Rocky shores and jetty pilings. Tolerant of a wide range of temperatures.
Textsource: Corals of the World by Charlie J.E.N. Veron
Astrangia astreiformis Milne Edwards & Haime, 1849
Astrangia danae Milne Edwards & Haime, 1849
Astrangia danae Agassiz, 1850
Astrangia edwardsii Verrill, 1866
Astrangia michelinii Milne Edwards & Haime, 1848
Madrepora poculata Ellis & Solander, 1786
Classification: Biota > Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Hexacorallia (Subclass) > Scleractinia (Order) > Rhizangiidae (Family) > Astrangia (Genus