Land Anemone

A Land Anemone is a creature that can be found on Floor 47 in the fields of Floria. It basically a sea anemone except for its extremly large size and it's inhabitance on land instead of in water.

Sword Art Online
At one point, Silica accidently stepped on a trap that summoned this creature and got caught in its grasp, though Kirito eliminated it with one slash of his sword.