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

A great resource for botanists, native plant enthusiasts, ecologists, conservationists, and amateur naturalists who desire a comprehensive, up-to-date, and well

For 70 years, people have turned to one book to learn about Northwest trees: Trees to Know in Oregon. This new edition, retitled Trees to Know in Oregon and Was

Major vegetational units of Oregon and Washington and their environmental relationships are described and illustrated. After an initial consideration of the veg

Flora of the Pacific Northwest, first published in 1973, became an instant classic for its innovative style of providing species descriptions in the identificat