Erica tetralix
Erica tetralix, the cross-leaved heath, is a species of flowering plant in the family Ericaceae, native to western Europe, from southern Portugal to central Norway, as well as a number of boggy regions further from the coast in Central Europe such as Austria and Switzerland. In bogs, wet heaths and damp coniferous woodland, "E. tetralix" can become a dominant part of the flora. It has also been introduced to parts of North America.