Drosera rotundifolia — the round-leaved sundew or common sundew — is a species of sundew, a carnivorous plant often found in bogs, marshes and fens. One of the most widespread sundew species, it has a circumboreal distribution, being found in all of northern Europe, much of Siberia, large parts of northern North America, Korea and Japan but is also found as far south as California, Mississippi and Alabama in the United States of America and on New Guinea.