Posidonia, Posidonia oceanica

Photo of balls created by fibrous material from the foliage of the marine plant Posidonia, Posidonia oceanica. Posidonia, Posidonia oceanica, is a marine flowering plant that resembles seaweed. It grows on the sea bed in shallow water where it forms “meadows”. Its dead leaves are often deposited on beaches. The Balls in the picture are created by fibrous material from its foliage.