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Title: Not a book for serious naturalists
Review: The book is well organized and has the appearance of being handy, but is seriously incomplete. I'm a botanist, with research in the Sierra, and have tried several different resources in the field. Many plant species, common throughout the Sierra, have no mention in the book. If you happen across a plant that is covered by the book, the information is usually good, but what good is the book if most plants are not covered? Many photo-based field guides exclude the vast majority of species, because it's too costly and unfeasible to publish a book that thorough. However, a photo-based field guide should at least include all the most common species, which is where I believe this book falls short.
