Bushy colonies sometimes forming a corymbose table-like structure, with vertical branches, orderly, quite separate and tapered finger-like, ending in a very elongated, spiky axial corallite.

Colony shape: Bush

Colony layout: Disorderly

Branch thickness: <5 mm

Axial corallites: Tubular, very elongated and spiky.

Radial corallites: Barely any except at the base. They are inserted at an acute angle, distant from each other and of the same size.

Coenosteum: Smooth

Polyp extension: Poor