Field Guide to the Grasses of Oregon and Washington

As the comprehensive reference for 394 species, subspecies, and varieties of grasses, Field Guide to the Grasses of Oregon and Washington has become the definitive identification resource for amateurs and professionals alike throughout the region. With 18 additional species, updated names, new keys, and improved photos and maps, the second edition provides an in—depth and refreshed treatment of both native and introduced grasses that grow wild in Oregon and Washington and their neighboring ...