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Higher elevations of coastal forest. Douglas-fir (seral); W Hemlock, W. Redcedar, Noble Fir (often climax) Mountain Hemlock, Subalpine Fir, Lodgepole Pine at higher elevations. Interior Highlands (incl. E. slope Cascades, W. Rockies, parts of Blue Mtns.).
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Higher elevations of coastal forest • Douglas-fir (seral); W Hemlock, W. Redcedar, Noble Fir (often climax) • Mountain Hemlock, Subalpine Fir, Lodgepole Pine at higher elevations
Interior Highlands (incl. E. slope Cascades, W. Rockies, parts of Blue Mtns.) • Grand Fir and Douglas-fir dominant in more humid higher elevations • Ponderosa Pine (often climax, fire resistant) and Junipers in lower elevations
Website on Pines http://oregonstate.edu/trees/con/spp/pinespp.html not required reading
Columbia-Snake Basalt Plateau • Drier areas (<10” precip.) in sagebrush Marsh grasses, shrubs along sloughs, lakes; wetter parts in bunch grass, flowering plants • Not-so-dry woodland and forest • Western Juniper of Central OR • Ponderosa Pine, Douglas-fir in areas>15” precip.
Transect from Columbia Plateau to Rocky Mountains • Tri Cities 300-500 feet above sea level • Ritzville: ~1700’ • Ecotone zone (near Sprague Lake) • Spokane • Northern Idaho