-Piper's anemone as seen along the North Fork Catherine Creek Trail #1905, Eagle Creek Wilderness.......June 12, 2018.
The photo at right shows Piper's anemone as seen near the northwestern edge of the Wenaha-Toucannon Wilderness in southeastern Washington.........June 28, 1998.
Piper's anemone is an attractive perennial wildflower with glabrous herbage and usually one (occasionally several) stems arising from 15-35 cm high, topped by single flowers. If present, the single basal leaf is trifoliolate with coarsely double-toothed margins. The lateral pair of leaflets may be bilobed over half their length. The 3 involucral leaves are each trifoliolate heavily strigillose with similar shape to the basal leaves. The involucral leaves are larger however, the leaflet blades measuring up to 7 cm long.
The 5-7 whitish sepals are oval in shape and 12-16 mm long, often with pinkish to purplish outer surfaces. The stamens usually number from 35-55. The style is straight, glabrous, and measures from 1.5-2 mm long.
The species is named in honor of Professor C.V. Piper from type specimens he collected in 1893 in Latah County, Idaho.
Piper's anemone is found in shady, moist coniferous forests in the mountains.
Piper's anemone is found from the Blue Mts. of northeastern Oregon and southwestern Washington east through central Idaho to Mineral County in Montana.
The photo above shows Piper's anemone as seen along Forest Service Road #4670 in meadows at Billy Meadows Guard Station in the northern Wallowa-Whitman N.F...........June 26, 2008.
Piper's anemone blooming along the trail around Jubilee Lake, Umatilla National Forest..........July 1, 2012.
The photo above shows a close-up of the flower of Piper's anemone as seen near 6150 feet along Forest Service Road #40 several miles north of Misery Springs in the Umatilla National Forest of southeastern Washington...........June 25, 2007.