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[60]Hitchcock. C. L. Vascular Plants of the Pacific Northwest.
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A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
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[82]Sargent. C. S. Manual of the Trees of N. America.
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Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader.
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