Characters: Colonies are compact clumps or bushes. Branches are fine, upright, tapered and irregularly fused (caespitose). Branchlets develop from incipient axial corallites and are evenly spaced. Axial corallites are small, although well defined. Radial corallites are tubular and appressed with openings less than 1 mm diameter.
Colour: Uniform yellow, cream or blue (which may photograph pink).
Habitat: Upper reef slopes and lagoons.
Abundance: Sometimes common.