Growth rings of a spruce tree, horizontal cross section, cut through the dried trunk of an European spruce tree, Picea abies, showing annual or tree rings. A new layer of wood is added every year. Pillow #697093818
Growth rings of a spruce tree, horizontal cross section, cut through the dried trunk of an European spruce tree, Picea abies, showing annual or tree rings. A new layer of wood is added every year. Pillow #697093818
