Infos from AIMS Website:
Characters: Colonies are submassive or have laminar bases and form tall columns and branches. Laminar and digitate forms are usually found in turbid water, submassive and columnar forms occur on reef slopes.
For more Infos and Picutres, click to the Link to AIMS Website.
Classification: Biota > Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Hexacorallia (Subclass) > Scleractinia (Order) > Acroporidae (Family) > Montipora (Genus) > Montipora cactus (Species)