Climbing False Buckwheat (Fallopia scandens (L.) Holub)

Also classified as Polygonum scandens L., Fallopia cristata (Engelm. & A.Gray) Holub.

USDA PLANTS treats the introduced thicket bindweed (Fallopia dumetorum) under the name Polygonum scandens var. dumetorum. We separate these taxa into different species and place both in the Fallopia genus, which most other authorities do as well. A third taxon is recognized by some authorities: USDA PLANTS recognizes Polygonum scandens L. var. cristatum, which POWO and a number of other sources consider a proper species Fallopia cristata. However, following Desjardins et al. (2023) we instead treat them both as belonging to this species without even recognizing any varieties, a treatment in line with both BONAP and FSUS.