Publication: Phytogr. Lusit. Select. 1: 150–151, pl. 62. 1816.
Origin: Introduced
Herbarium search: CPNWH
Notes: Recently collected (May 2016) at Fort Worden, Jefferson County, Washington. Also known from one recent collection in Linn County, Oregon, and from California.
Last updated 4/28/2020 by David Giblin.