Birch LeavesWild Icelandic Birch Leaves (Birkilauf) The fragrant spirit of the Icelandic forest. Birch is the iconic tree of the Icelandic wilderness, being the only native tree to form woodlands across the island. Our birch leaves are hand harvested during the bright days of the Arctic summer, when the leaves are at their most vibrant and aromatic. These leaves are then carefully dried and ground to preserve their fresh, botanical essence. The Icelandic Wild: