Arbutus unedo is an evergreen shrub or small tree in the flowering plant family Ericaceae native to the Mediterranean region and western Europe, particularly northern and western France and southwestern and northwestern Ireland. The tree is well known for its fruit, which bear some resemblance to the strawberry—hence the common name "strawberry tree." However, it is not closely related to the Fragaria plant. Its presence in Ireland also lends it the moniker "Irish strawberry tree," or cain, or cane apple (from the Irish name for the tree, caithne), or sometimes "Killarney strawberry tree."