indicated as introduced in California in Flora North America treatment by Craig C. Freeman, Harold R. Hinds. The Jepson Manual [Ed. 2] treatment by Mihai Costea.
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 indicates that Fallopia baldschuanica (Regel) Holub is to be treated as naturalized in California in The Jepson Manual [Ed. 2], with Polygonum baldschuanicum Regel and other names as syn.
