In Northern Sweden , traces of Sami harvest of bark from Scots pine are known from the 1890s , and in Finland `` pettuleipä '' ( literally `` pinewood-bark bread '' ) was produced as ersatz bread during the Finnish Civil War of 1918 .
In Northern Sweden , traces of Sami harvest of bark from Scots pine are known from the 1890s . In Finland `` pettuleipä '' ( literally `` pinewood-bark bread '' ) was produced as a substitute for bread during the Finnish Civil War of 1918 .