Forbs (wildflowers) are essential components of resilient, biologically and functionally diverse communities, but their use in restoration and rehabilitation in the Intermountain West remains limited. This online book, Western Forbs: Biology, Ecology, and Use in Restoration, synthesizes all existing research and practical experience gained over the last 20 years. It is designed to aid seed collectors, seed growers, nurserymen, landowners, restoration practitioners, and land managers as they increase the supply and use of native forbs. Each chapter features an individual species’ biology, ecology, seed technology, and use in restoration based on literature and data available at the time of publication. Taxonomic treatments for species follow the Flora of North America (FNA). For those species not yet treated by FNA, nomenclature follows the US Department of Agriculture, Natural Resources Conservation Service PLANTS database, which uses the Integrated Taxonomic Information System (ITIS) and other species-specific taxonomic sources. This book is funded primarily by the Bureau of Land Management (BLM) with additional support from the US Forest Service, Rocky Mountain Research Station, the Great Basin Fire Science Exchange, and the University of Nevada, Reno.