Found a small bag of pine bark flours from a store in Helsinki. The flours are made from the dried phloem of Scots pine (Pinus sylvestris). I think its a speciality limited to Finland and Karelia. It does not taste like pulp, as someone might believe. On paper it is rather impressive: more nutrients and vitamins than most fungi and berries native to Northern Europe. However it is very hard to come by even in Finland although the raw material, i.e pines, are easy to come by. I know only one producer in Northern Finland. I highly recommend trying it if you ever come to Finland. Naturally one can also order it through online from certain stores.