Aug. 17, 2020
Rocky Mountain elderberry
This is Sambucus racemosus, var. melanocarpa. The fruit is black, very much like edible common elderberry. If you're in places where those ranges overlap, be careful! These bunches are pyramid shaped while common elderberry has broad almost flat bunches. The faint pink blush on the petals in the image of var. pubens is not typical, and is not an identifying feature.
Rocky Mountain elderberry grows in AZ, CA, CO, ID, MT, NM, NV, OR, SD, TX, UT, WA, WY, AB, and BC. Summit Co CO, 6/17/13.