Anemone piperi Britton ex Rydb
Collected along the Lolo Trail possibly along Eldorado Creek near the mouth of Lunch Creek in Idaho Co., Idaho, on 15 Jun 1806. (Source)
A perennial herb with alternate divided leaves. Flowers are white, with r
petal-like sepals and no petals. The fruits are tiny, beaked seed-like achenes
in dense heads. It blooms in May-July. The plant prefers cool, shady site
with a humus, moist soil
alpine house, moist, humus soil, and shade. It grows in thicket and wood at elevations from 400-3000m in the Western United States.
Caution: All anemones are somewhat poisonous.