Publication: Mém. Soc. Imp. Naturalistes Moscou. 5: 336. 1817.
Origin: Introduced from Europe
Herbarium search: CPNWH
Notes: Occurs along the Columbia River Basin and tributaries in Washington, with collections from Okanogan, Grant, and Wahkiakum counties.
Last updated 6/14/2023 by David Giblin.