From WSU Clark County Extension:
This is a woody shrub with an erect to spreading form. It often grows to height of 12’ with an equal width. Leaves are arranged in an alternate fashion. They are simple, 1”-3” in length and have an oval to oblong shape. During the summer the leaves are green while in the fall they can turn a very pleasing red to yellow color.
 
White fragrant flowers, arranged in racemes (3-20 per cluster), appear from April through July. Flowers morph to ½” bluish-purple, juicy edible berries which ripen in early summer. The versatile fruit may be used fresh or dried, cooked or raw. The berries are popular with wildlife.
 
Serviceberry blossoms are attractive to bees and butterflies.
 
Primary and secondary photos credit: Matt Lavin on Flickr (CC BY-SA 2.0 Deed)