Clavulina rugosa, commonly known as the wrinkled coral fungus, is a species of coral fungus in the family Clavulinaceae. It is edible.
The species was originally described as Clavaria rugosa by Jean Bulliard in 1790. It was transferred to Clavulina by Joseph Schröter in 1888.
It grows up to tall and varies in width.
It can be found in Europe, growing near wooded paths from August to November.
One field guide lists it as edible when cooked.