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NSN seed logoIf data is available, this is where you find Ecoregion Descriptions, Plant Communities of that ecoregion, and Species Lists/Recommendations for both.  If you know the community types at your project site, use community recommendations as the species will be more appropriate and more specifically geared to your site.  
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Middle Rockies Ecoregion

The climate of the Middle Rockies lacks the strong maritime influence of the Northern Rockies. Mountains have Douglas-fir, subalpine fir, and Engelmann spruce forests and alpine areas; Pacific tree species are never dominant. Forests can be open. Foothills are partly wooded or shrub- and grass-covered. Intermontane valleys are grass- and/or shrub-covered and contain a mosaic of terrestrial and aquatic fauna that is distinct from the nearby mountains. Many mountain-fed, perennial streams occur and differentiate the intermontane valleys from the Northwestern Great Plains. Granitics and associated management problems are less extensive than in the Idaho Batholith. Recreation, logging, mining, and summer livestock grazing are common land uses.
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Middle Rockies Plant Communities


In the Intermountain area, there are over 20 million acres (8.1 million ha) of aspen scattered from upper foothill ranges to mountaintops and high plateaus. The majority of the aspen occurs at middle elevations and span a broad range of environmental conditions. Annual precipitation within the Intermountain aspen zone ranges from 16 to 40 inches (400 to 1,000 mm). Aspen can be found growing in association with tall forbs, ponderosa pine, lodgepole pine, spruce-fir, mountain brush, open parks of mountain big sagebrush, snowberry and chokecherry, and on the margin of grasslands. Aspen trees are found along moist streams as well as on dry ridges and southerly exposures, on talus slopes, and in deep to shallow soils of various origins.
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Basin big sagebrush

Within the Intermountain West, basin big sagebrush can be found from 3,000 to 7,000 ft (914 to 2,140 m) elevation, with annual precipitation ranging from 9 to 16 inches (23 to 41 cm). A majority of the irrigated farmlands, dry farms, and dryland pastures within the Intermountain West were once dominated by basin big sagebrush.
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Black greasewood

Black greasewood occupies considerable acreages on salty valley bottoms. This plant also occurs on salt-bearing shale outcrops in canyons and on foothills. Sites vary in respect to soil texture and availability of ground water. Some areas are wet with high water tables, and others are dry with welldrained soils. Black greasewood occurs in pure or mixed stands. Livestock can safely consume moderate amounts of greasewood when it is eaten in conjunction with other forage. Black greasewood is not known to be poisonous to game animals and, in fact, has some forage value.
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Sage Grouse Species

This list includes plants that have been identified by the BLM as priority species for improving sage grouse habitat.
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Shadscale saltbush

Shadscale-saltbush communities dominate broad valley bottoms and adjacent foothills where they merge with big sagebrush and juniper-pinyon. Shadscale is the most common and abundant shrub of the salt desert shrubland. Shadscale is found in heavy soils; on highly alkaline soils, shadscale occurs in nearly pure stands. Annual precipitation on these areas is generally less than 10 inches (250 mm), with many areas receiving from 3 to 8 inches (80 to 200 mm). Shadscale exists as nearly pure stands with large open spaces among plants in valley bottoms. On higher slopes it exists in fairly complex mixtures with other low shrubs and some grasses.
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