Botanists at the University of Washington’s Burke Museum of Natural History & Culture have created a much-needed second edition of the “Flora of the Pacific Northwest.” Published by the UW Press, the new edition took five years to complete and is the first update on Pacific Northwest vascular plant diversity and distributions since the book was first published in 1973. In the past 45 years, much has changed: The second edition documents the doubling of nonnative species in the Pacific Northwest, the addition of 1,000 taxa—including species, subspecies and varieties—to the region’s flora, and the reclassification or renaming of 40 percent of the taxa in the first edition.