Paul Klee
Tree Faces 1
Kleisterfarbe auf Papier auf Karton , 28 x 17,9 cm
Zentrum Paul Klee, Bern
Little birch grove
Birch trees are easy to recognize: They have white bark that is usually smooth, depending on the species. The outer layer of the bark is easy to peel off most kinds of birch trees. In the past, it was used as paper. The substance betulin is what makes it white. Birch trees grow in northern regions, where the sun is low in the winter. The white bark reflects the sun’s rays, regulating the temperature so the trunk doesn’t get as warm. Betulin is also water-repellent and antibacterial, so it helps ward off pests. In nature, beauty usually has a function. The texture of the peeling birch bark invites us to discover “tree faces”. Who do you recognize in the trunks of our birch trees?