Picea abies - common spruce, Norway spruce
The Norway spruce is the second commonest tree species in Finland. When the continental glaciers thawed and withdrew, the spruce was the last tree species to spread into the country, from the east rather than from the west, which is where most Finnish species have come from. About 5000 years ago the cooling climate and increasing humidity favoured the spruce over its rival broadleaf species, which had arrived much earlier.