Publication: Bull. Torrey Bot. Club. 29: 153. 1902.
selected vouchers: WTU
Notes: FNA3: "Plants of Anemone piperi from southeastern Washington and northeastern Oregon (i.e., the westernmost limits of the species) are sometimes intermediate between A . piperi and A . oregana . Although they possess vertical rhizomes characteristic of A . piperi , they have the bluish or pinkish sepals of A . oregana . These plants are best referred to A . piperi , pending detailed biosystematic analysis."