This sizable green anemone has tentacles with purple tips. There is a mouth in the middle of the tentacles. There are other anemones attached to the rock nearby. They have shells and gravel stuck to them.
This anemone is on a rock in the intertidal zone. It is in cold water and rough surf.
The aggregating anemone is so named because it can multiply itself by cloning itself, thus forming little clusters of anemones on rocks. This anemone can survive buried in sand for three months. Groups of anemones cloned from different individuals will fight and sting each other. These anemones have stings but they are not strong enough to get through human skin generally. They just feel sticky.