Kinds of wood used in Dutch prehistory were for sure oak (Quercus), lime (Tilia) and needle wood. The fact that more different kinds of wood were used could refer to that one maybe was more looking for a tree with the right diameter than to a tree of a specific kind. For sure, oak wood is very fit for canoes as it does not rot away very fast, that is a quality one needs in wet circumstances. And the oldest canoe of Europe/the World? This is found in the Netherlands: the Pesse canoe, dated to about 6,500 BC.