I've had a look at the following links, but is there a simple way to divide trees on taxonomy-like basis?
http://en.wikipedia.org/wiki/Treehttp://www.answers.com/topic/hardwoodhttp://www.answers.com/topic/softwood
I'm aware of the basic hardwood (broadleaf, dicotyledonous, flower-bearing, generally deciduous) and softwood (narrow leafed, monocotyledonous, coniferous, generally evergreens) although there are some exceptiosn and some betwixt and between.
Yes, this is a college project, but it is statistics, not biology.