Family CN: Smartweed Family Family Code: POLYGO Family Parent: [in CARYOPHYLLALES] Family Authority: A.L. de Jussieu 1789 Summary: A family of about 43-48 genera and 1100-1200 species, trees, shrubs, vines, and herbs, cosmopolitan, but especially north temperate. Recent changes in the circumscription of various genera (including Polygonum, Persicaria, Fallopia, etc.) have received strong support from molecular phylogenetic studies (Kim & Donoghue 2008; Lamb Frye & Kron 2003; Schuster, Reveal, & Kron 2011). Reference: Freeman & Reveal in FNA (2005); Horton (1972)=Z; Mitchell & Dean (1978)=Y; Ronse Decraene & Akeroyd (1988); Brandbyge in Kubitzki, Rohwer, & Bittrich (1993); Lamb Frye & Kron (2003); Kim & Donoghue 2008). Last Updated: 2020-01-01 Publish: 1