The Plumose anemone is a conspicuous anemone which is unlikely to be mistaken for anything else. They are a prominent animal and occurs in large numbers covering big areas of sea bed and wreckage in many of the best dive sites on the south coast. The Plumose anemone has a tall smooth column topped with a crown of very numerous fine slender tentacles which give the characteristic feather appearance. It can shrink into itself and when withdrawn it looks like a little mound. It can be orange, white or green in colour.
On wreckage this anemone appears to prefer vertical surfaces on upright spars, rails and plates to horizontal positions.
They are normally more commonly found below the seaweed zone. Plumose anemones are common all along the coast of Ireland.