I think you have to judge each species on it's own merits. When I'm thinking about this I always think about Maple. Sugar Maple, Vine Maple, Douglas Maple make good bows. Big Leafed,Red(I think),Sycamore don't. They are all Maples(Acer) but thir bow making qualities are all over the map. Just because a man's name is Lennon doesn't mean he can write music.