Colonies are compact clumps of long, non-tapering, straight, equidistant branchlets radiating from a solid base. Axial corallites are tubular with rounded margins. Radial corallites are long, tubular and appressed. The whole colony is delicate and branchlets readily break apart.
Cream, blue or purple, usually with purple branch tips.
Outer reef flats where currents or wave action is strong.