Bitterbrush is ubiquitous in western Montana, and forms a significant portion of some diverse habitats. It can grow in open steppe (similar to sagebrush), on sandy dunes, on steep sunny south-facing hillsides, and in open forest understory. 
 
From a distance bitterbrush looks a little like sage. It has little silvery green lobed leaves and branches that twist and turn sideways as they grow, giving even young shrubs a sort of 'ancient' feel; they all look unique. They take on many shapes and forms, but I have rarely seen them exceed 6 ft in height. 
 
Bitterbrush seeds are large and full of nutrients, and are a primary food source of many birds and rodents. Deer, antelope (hence the name), and other ungulates rely on bitterbrush for forage in many places, but this is not a problem for established mature plants (assuming adequate forage is available in the area).
 
To me the most remarkable thing about bitterbrush is its diversity of habitat. This tolerance of a wide range of growing conditions translates well to garden living. Above all though, bitterbrush will not tolerate soggy or wet soils; good drainage is a must. 
 
Grow with sages in prairie plantings, and mockorange, ninebark, chokecherry, and oceanspray in for forested settings.