Family Code: POLYGO Genus Code: BRUNN Genus CN: buckwheat vine Genus Authority: Banks ex Gaertn. Genus Summary: A genus of 3-4 species, vines, of. e. North America and w. Africa. Genus References: Holmes in FNA (2005); Brandbyge in Kubitzki, Rohwer, & Bittrich (1993). Last Updated: 2019-11-29 Publish: 1