Flabellia petiolata is a green algae in the Udoteaceae family. Flabellia petiolata is native to the Mediterranean Sea and also occurs in the Canary Islands and Cape Verde. Lives at a depth between 10 and 60 meters; the video that I present to you was made at a depth of over 50 meters and highlights a beautiful carpet of this important alga. It grows in coralligenous substrates of the sublittoral often in association with other algae.