This is a common algae whose blades can be up to 50cm long and 3cm wide. The blades are flat, spear-shaped and shiny green. In caulerpa prolifera, reproduction is mainly vegetative i.e. asexual. It prefers sandy or muddy bottoms between 1m and 15m below the surface. It is found in the Mediterranean, the Black Sea and also in the Atlantic from southern Spain and the Canary Islands to the Caribbean.
Scientific name: Caulerpa prolifera
French: Caulerpe de Méditerranée