Codium tomentosum is a small green algae that has cylindrical stalk, dichotomously branched and spongy-elastic consistency. This algae can be covered with epiphytic algae, being a very common species throughout the Portuguese coast.

Source: PEREIRA, L. (2009) Guia Ilustrado das Macroalgas. Imprensa da Universidade de Coimbra, página 44.