Publication: Sp. Pl. 2: 898. 1753.
Origin: Introduced from Eurasia
Herbarium search: CPNWH
Notes: FNA19 lists this species as occurring in WA. No voucher, reported by R. Old in Kz99.
FNA19: "Achillea ptarmica is naturalized from Eurasia. "Double-flowered" plants originated as cultivars; apparently, they persist outside of cultivation."
Last updated 5/23/2020 by David Giblin.