Species: Polygonum douglasii ssp. spergulariiforme
Fall Knotweed
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Plantae
Phylum
Anthophyta
Class
Dicotyledoneae
Order
Polygonales
Family
Polygonaceae
Genus
Polygonum
NatureServe
Classification
Other Global Common Names
renouée fausse-spergulaire - spurrey knotweed
Informal Taxonomy
Plants, Vascular - Flowering Plants - Buckwheat Family
Formal Taxonomy
Plantae - Anthophyta - Dicotyledoneae - Polygonales - Polygonaceae - Polygonum - Treated as the distinct species, Polygonum spergulariiforme by Flora of North America (vol. 5, 2005).
Conservation Status
NatureServe Global Status Rank
G5T4?
Global Status Last Reviewed
2011-02-24
Global Status Last Changed
1996-01-23
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S5&US.CA=SNR&US.ID=SNR&US.MT=SU&US.OR=SNR&US.WA=SNR&US.WY=S1" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
British Columbia south to California, east to Idaho, Wyoming and, reportedly, Colorado (Hitchcock et al. 1964, Harrington 1953). <br>