Leiberg Stonecrop, a native species, has been added to the USWildflowers database (07/15/2012.) Scientific name is Sedum leibergi.  Photo below was taken on the Kleinschmidt Grade in Adams County, ID on June 19, 2011.  Go to the Leiberg Stonecrop detail page for more photos and information.

Leiberg Stonecrop – Sedum leibergii