Western Blue Elder, a native species, has been added to the USWildflowers database (10/30/2012.) Scientific name is Sambucus nigra ssp. cerulea.  Photo below was taken along the Kleinschmidt Grade, Adams County, ID on June 19, 2011. Go to the Western Blue Elder detail page for more photos and information.

Western Blue Elder, Blue Elderberry – Sambucus nigra ssp. cerulea