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Ponderosa Pine/Bitterbrush Woodland

Ecoregion in Cascade Range, OR

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The undulating volcanic plateaus and canyons of the Ponderosa Pine/Bitterbrush Woodland have well-drained, frigid soils that are often derived from ash. Ponderosa pine is common; lodgepole pine is largely absent unlike in the Pumice Plateau (9e). Understory vegetation varies with elevation; at lower elevations, antelope bitterbrush is important winter browse for deer.

— EPA

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