Publication: Sp. Pl. 1: 494. 1753.
Origin: Introduced
Notes: Reported from WA in FNA. Flora of the Olympic Peninsula notes one population naturalized along a Forest Service road. There are no specimens of this species at WTU, and there have not been any further reports of this species naturalizing in WA. This species is excluded until further evidence of its persistence in Washington is produced.
References: (none)