Field Guide to the Grasses of Oregon and Washington is an illustrated guide to all 365 species, subspecies, and varieties of grasses--both native and introduced--that grow wild in Oregon and Washington. It also has broad applicability in neighboring states and provinces. Grasses are important functional components in a variety of ecosystems and are highly valued for habitat restoration in ecosystems ranging from wetlands to deserts, and from sea level to alpine. They are important weeds and are also cultivated as ornamental plants. --Publisher