Sharp-Fruited Knotweed (Polygonum oxyspermum C.A. Mey. & Bunge ex Ledeb.)
Some sources lump Ray's knotweed (Polygonum raii) in with this species, as Polygonum oxyspermum subsp. raii (Bab.) D.A.Webb & Chater. We treat that taxon as a separate species, per POWO's treatment.
↑Range - Expand
| Legend | Color |
| Introduced |
This map is based on our research. We have checked its accuracy to Level 3 ecoregions. Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.
In North America, this species has only been reported from Shelburne and Queens counties in Nova Scotia.
↑Habitat
In North America, this species has only been found in Nova Scotia, in damp sandy, rocky, and gravely areas along the coast, conditions that more-or-less resemble its habitat in its native range.
↑Links & External Resources
• Polygonum oxyspermum (knotweed) | USDA PLANTS Database (About This Site)
• Polygonum oxyspermum | Go Botany (About This Site)
• Soft Downy-Rose | iNaturalist (About This Site)
• Polygonum oxyspermum | Biota of North America Project (BONAP) (About This Site)
• Polygonum oxyspermum | Flora of North America (About This Site)
• Polygonum oxyspermum C.A.Mey. & Bunge ex Ledeb. | Plants of the World Online (POWO) (About This Site)
