Major Indicator Shrubs and Herbs on National Forests of Eastern Oregon

摘要

This field aid has been developed to provide a nontechnical reference for the identification of major indicator species found in described plant associations of eastern Oregon. Only forested sites administered by the USDA Forest Service east of the crest of the Oregon Cascades are referenced. The plants presented here have been selected as the most common shrubs and herbs referred to in the various plant association guides. Coniferous trees have been excluded. The majority of the plants described here are perennial. A short description, general indicator characteristics, and both a line drawing and color photograph is presented for each plant.