Species: Polygonum douglasii ssp. johnstonii
Johnston's 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
Johnston's knotweed
Informal Taxonomy
Plants, Vascular - Flowering Plants - Buckwheat Family
Formal Taxonomy
Plantae - Anthophyta - Dicotyledoneae - Polygonales - Polygonaceae - Polygonum - was misapplied to the type (Costea and Tardif 2003).
Conservation Status
NatureServe Global Status Rank
G5T4T5
Global Status Last Reviewed
2004-05-06
Global Status Last Changed
2004-05-06
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=SNR&US.AZ=SNR&US.CA=SNR&US.CO=SNR&US.ID=SNR&US.MT=SNR&US.NE=SNR&US.NV=SNR&US.NM=SNR&US.NC=SU&US.ND=SNR&US.OR=SNR&US.SD=SNR&US.UT=SNR&US.WA=SNR&US.WY=SNR" alt="Conservation Status Map" style="width: 475px; height: auto;" />