Characters: Colonies consist of dense thickets usually less than one metre across. Branches are short and cylindrical and divide at frequent intervals. Axial corallites are small, tubular and not exsert. Radial corallites are irregular on the sides of thicker branches, becoming uniform in size and shape towards branch tips. The latter are long and curved and are aligned in comb-like rows down branch slides. Colour: Pale brown with white branch tips. Similar species: Acropora exquisita, which has thinner branches and radial corallites which are not conspicuously in rows. See also A. yongei, which forms larger branches and has less exsert radial corallites. Habitat: Shallow reef flats and upper slopes. Abundance: Uncommon.