The nice thing about the DF raws is that they now list the actual species used as a basis. A lot of research went on some time ago to add correct, sourced info

The nice thing about the DF raws is that they now list the actual species used as a basis. A lot of research went on some time ago to add correct, sourced information to the raws. There are probably still a few wonky things, as some of the properties in there make more sense for metals than things like wood, but the players care about even strange details like that.