Colonies have a wide range of forms from compact bushes to tables. They seldom exceed 0.5 metres across. Axial corallites are small. Radial corallites are usually a mixture of sizes and are strongly appressed and swollen, with small openings.
Cream, brown or yellow, sometimes brown with purple branch tips and cream radial corallites, a colour commonly shared by A. secale and A. nana.
A wide range of reef environments and rocky foreshores.
Taxonomic note: This species is divisible into several smaller semi-distinct taxonomic units. Source reference: Veron (2000). Taxonomic references: Veron and Wallace (1984), Wallace (1999). Additional identification guides: Veron (1986), Nishihira and Veron (1995), Coles (1996).
displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora valida.Scott Reef, western Australia.Common on intertidal reef flats where it may resemble A. nana.Charlie Veron.
Acropora valida.Great Barrier Reef, Australia.On an upper reef slope exposed to wave action.Charlie Veron.
Acropora valida.Indonesia.Common appearance of colonies on upper reef slopes.Jim Maragos.
Acropora valida.Ryukyu Islands, Japan.Variation in structure and colour in colonies in exposed habitats.Charlie Veron.
Acropora valida.Great Barrier Reef, Australia.Variation in structure and colour in colonies.Ed Lovell.
Acropora valida.Philippines.Variation in structure and colour in colonies in protected habitats.Charlie Veron.