Characters: Colonies are thick plates or are hemispherical. Valleys are usually perpendicular to the margins of plates, and are sinuous towards colony centres. They are short, broad (up to 20 mm), V-shaped and have sharp upper margins. Columellae are weakly developed.
Colour: Greenish- or yellowish-brown walls with yellow, green or pink valley floors.
Similar Species: Oulophyllia crispa, which is less colourful and has slightly larger valleys with less developed columellae.
Habitat: Most reef environments.
Taxonomic Note: Not always clearly delineated from Oulophyllia crispa unless both species occur together.