Flora of the Pacific Northwest, first published in 1973, became an instant classic for its innovative style of providing species descriptions in the identification keys, and for its comprehensive illustrations of nearly all treated taxa (species, subspecies, and varieties). Students rely on it as an essential primer, while veteran botanists and natural resource managers use it as the definitive reference for the region�s flora. This completely revised and updated edition captures the advances in vascular plant systematics over the decades since publication of the first edition. These advances, together with significant changes in plant nomenclature, the description of taxa new to science from the region, and the recent documentation of new native and nonnative species in the Pacific Northwest required a thorough revision of this authoritative work. Flora of the Pacific Northwest covers all of Washington, the northern half of Oregon, Idaho north of the Snake River Plain, the mountainous portion of western Montana, and the southern portion of British Columbia. It accounts for the wild-growing native and introduced vascular plants falling within those boundaries and includes: Treatment of 5,545 taxa (more than 1,000 taxa added from the first edition) Illustrations for 4,716 taxa (1,382 more than the first edition) Nomenclature changes for more than 40 percent of the taxa included in the first edition These enhancements make this new edition the most comprehensive reference on Pacific Northwest vascular plants for professional and amateur botanists, ecologists, rare plant biologists, plant taxonomy instructors, land managers, nursery professionals, and gardeners.

Powerful Pacific storms strike the region. Otherworldly lenticular clouds often cap Mount Rainier. Rain shadows create sunny skies while torrential rain falls a few miles away. The Pineapple Express brings tropical moisture and warmth during Northwest winters. The Pacific Northwest produces some of the most distinctive and variable weather in North America, which is described with colorful and evocative language in this book. Atmospheric scientist and blogger Cliff Mass, known for his ability to make complex science readily accessible to all, shares eyewitness accounts, historical episodes, and the latest meteorological knowledge. This updated, extensively illustrated, and expanded new edition features: • A new chapter on the history of wildfires and their impact on air quality • Analysis of recent floods and storms, including the Oso landslide of 2014, the 2016 “Ides of October” windstorm, and the tornado that damaged 250 homes in Port Orchard on the Kitsap Peninsula in 2018 • Fresh insight on local weather phenomena such as “The Blob” • Updates on the latest technological advances used in forecasting • A new chapter on the meteorology of British Columbia Highly readable and packed with useful scientific information, this indispensable guide is a go-to resource for outdoor enthusiasts, boaters, gardeners, and anyone who wants to understand and appreciate the complex and fascinating meteorology of the region.