Mock Orange (Philadelphus lewisii)
Idahoans may recognize this low-elevation, white-flowered shrub as their state flower. The Latin name comes, not from the Pennsylvania city, but rather the Egyptian king, Ptolemy Philadelphus, along with, as one might guess, Meriwether Lewis, who “discovered” the plant and collected it. Native Americans had, of course, discovered it some time earlier, and, according to The National Audubon Society Field Guide to Wildflowers, made arrows from its straight stems. The “mocking” alluded to by the nickname, apparently has as much to do with the scent of the blossoms as their appearance.
Some huge shrubs were in full bloom in early June near the beginning of the Labyrinth trail.