Large colonies with thick branches, spiky and fused at the base; the branches are often prostrated on the sides.

Colony shape: Staghorn

Colony layout: Disorderly

Branch thickness: >20 mm

Axial corallites: Tubular, large and not outstanding

Radial corallites: Tubular, elongated and spiny, very close to each other and in different sizes

Coenosteum: Rough

Polyp extension: Poor