Flour and forest perfumes
Forest produce is also quite valuable and can be picked in any season: berries in summer, mushrooms in autumn and nuts of resinous trees in winter. In the old times, during the famine, the Scots pine (sapwood) bark was used even to make flour.
Lichens are picked on the Halluoto island, in Finland. They are used by florists to make flower compositions. They are also used in perfumery as perfume fixatives. The only downside is it takes approximately 20 years for lichens to reach the right size to be used.