Flora of the Pacific Northwest: an illustrated manual

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xix + 730 pgs. ISBN 0295952733
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excellent condensation of the 5 volumes of Hitchcock et al. 1955-1969, including descriptions and keys to families and genera, expanded descriptive keys to species and varieties, and at least partial line illustrations of every taxon. Coverage ends south of central Oregon and central Idaho, but still useful for many of the more widespread species in northern Nevada.