Western Mountain-ash - Sorbus sitchensis var. grayi
This is the common mountain-ash found at Mount Rainier and widespread above 4500 feet, in open moist woods and in thickets. Photographed (left to right) at Sunrise on September 2, 2013, in Paradise Valley on September 26, 2012, along the Skyline trail, August 2, 2013, and at Paradise on June 23, 2016.