Publication: Sp. Pl. 1: 372. 1753.
Origin: Introduced from Eurasia
selected vouchers: WTU
Notes: Noxious.
References:
» The Angiosperm Phylogeny Group. 2003. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Bot. J. Linn. Soc. 141: 399–436.