USDA-NRCS PLANTS Database / Britton, N.L., and A.
Brown. 1913.An illustrated
flora of the
northern United States, Canada and the British
Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 415.
Photo Details - ŠNicky Davis
showed us this plant on the trail above Alpine
City, Utah County, Utah 4 may 2015.