I've recently moved from the northwest to Texas where part of my job is reviewing landscaping for the city landscaping ordinance. The problem here of course is that I DO NOT KNOW the local flora. I wasn't that good with northwest flora to begin with. So, can any one recommend a book or two to help me speed up the learning curve as I try to figure out how to tell an oak from an elm not to mention being able to tell one KIND of oak from another.


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