Grasslands of the United States

vegetation zone

The Palouse ( ) is a geographic region of the northwestern United States, encompassing parts of north central Idaho, southeastern Washington (part of eastern Washington), and by some definitions, parts of northeast Oregon. It is a major agricultural area, primarily producing wheat and legumes. Situated about north of the Oregon Trail, the region experienced rapid growth in the late 19th century.

classification of protected and managed federal lands

ecoregion in North America

ecosystem in the Great Plains of North America

ecoregion in Texas, Oklahoma, and Kansas