Characters: Colonies are shaped like fir trees, with bottlebrush-like radiating sub-branches increasing in length down main branches. The degree of branch development varies greatly with environment. Axial and radial corallites are similar. Both are small with thick rounded walls.
Colour: Yellow or cream with pale branch tips.
Similar Species: Acropora carduus, which has similar corallite dimensions but an irregular shape. See also A. longicyathus and A. subglabra neither of which are fir tree-like.
Habitat: Shallow reef slopes and fringing reefs.
Abundance: Common and may form extensive single species stands.
Taxonomic References: Wallace (1978); Veron and Wallace (1984); Wallace (1999); Veron (2000a); Wallace, Done and Muir (2012);
Identification Guides: Veron (1986a); Nishihira and Veron (1995); Pillay, Terashima, Venkatasami et al. (2002); Turak and DeVantier (2011b);
