Found on creeping willow ("S. repens") and "S. rosmarinifolia". Here, they are associated with creeping willow, which grows extensively on the hill. Creeping willow curls in the shape of a rose called the "Skagen rose". Salix arctica, the Arctic willow, is a tiny creeping willow (family Salicaceae). In Europe these plants include&colon; creeping willow, cotton grass, yellow iris, reeds, and rushes.