Any one of numerous species of soft-bodied Anthozoa, belonging to the order Actinaria; an actinian.

marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton

a cnidarian that lives attached to the sea floor, coral or rock, and looks like a flower with a mouth that is surrounded by tentacles that reach upward

An attached marine animal with tentacles around the mouth opening, creating a flower-like appearance. The tentacles have stinging cells that capture food.

Sea anemones are a group of water dwelling, filter feeding animals of the order Actinaria; they are named after the anemone, a terrestrial flower. As cnidarians, sea anemones are closely related to corals, jellyfish, tube-dwelling anemones and Hydra.