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The second edition of Field Guide to the Sedges of the Pacific Northwest is a newly updated, expanded, and revised edition of the authoritative guide to the gen

Field Guide to the Sedges of the Pacific Northwest is an illustrated guide to all 163 species, subspecies, and varieties in the genus Carex that occur in Oregon

Field Guide to the Grasses of Oregon and Washington is an illustrated guide to all 376 species, subspecies, and varieties of grasses--both native and introduced

Authoritative field guide to 330 wetland species of the Pacific Northwest.