Cartilaginous, regularly or irregularly bipinnate, dark red-brown fronds, 50-100 mm high, arising from a creeping base. Main axes narrow, cylindrical, somewhat flattened above. Ultimate branches short, pointed at first, later ± spathulate, particularly when reproductive. Appearance variable with habitat and time of year. The species are abundant in and around tidal pools in mid- and lower intertidal in high- light situations. Generally epiphytic on Corallina officinalis. The species are common, widely distributed.

Source: M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 November 2013.