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Title: Good general guide
Review: This book is the only one generally available on the topic and it is, in general, an excellent book. It does a very good job of being accessable to non-experts and yet provides enough detail for serious botanists. The major criticism is that the map published with the original printing is no longer available. It is unfortunate, because it would have been an excellent resource. Another criticism is the very small maps for ranges of various plants. Aside from these points it is a good general guide. Of the many keys I have used in many different texts, the ones here are unique, combining a blend of taxonimic and non-taxonomic characteristics to make them useful and easy to follow. I was very impressed with the key for willows, which many books have a very difficult time with. The winter and summer keys were also helpful for many species. The black and white drawings are excellent and numerous. It packs a lot of information in a very small book.
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