Nonnative Invasive Plants of Pacific Coast Forests: A Field Guide for Identification
Andrew Gray, Katie Barndt, and Sarah Reichard. 2011. USDA Forest Service Pacific Northwest Research Station.
This new field guide is concise and well-illustrated for novice botanists and managers alike. The 91-page color guide provides detail on each plant in nontechnical language and photos of different stages of plant development are included to allow reliable identification in the field at different times of the year. Information was synthesized from various national, regional, and state lists, assessments, and botanical guides. The field guide covers California, Oregon, and Washington.