Fowler's Knotweed (Polygonum fowleri) wildspecies.ca

Secure

Present in regions

Migratory species: Unknown

Taxonomic group:

Vascular plants

Learn more about all species of Vascular plants in Canada.

The General Status ranks do not have legal weight. They are meant to identify the species that may be at risk in Canada.

Access other data on this species on the NatureServe Explorer.

Common Names

English common name:

Fowler's Knotweed

French common name:

Renouée de Fowler

Year	English common name	French common name
2005	Fowler's Knotweed	Renouée de Fowler
2010	Fowler's Knotweed	Renouée de Fowler
2015	Fowler's Knotweed	Renouée de Fowler
2020	Fowler's Knotweed	Renouée de Fowler

Source: iNaturalist

Scientific Names

Higher Classification:

Superkingdom

EUKARYOTA

Kingdom

PLANTAE

Subkingdom

VIRIDIPLANTAE

Infrakingdom

STREPTOPHYTA

Superphylum

Embryophyta

Phylum

Tracheophyta

Subphylum

Spermatophytina

Superclass

Angiospermae

Class

Magnoliopsida

Superorder

Caryophyllanae

Year	Scientific name	Family	Order
2005	Polygonum fowleri	Polygonaceae	Polygonales
2010	Polygonum fowleri	Polygonaceae	Polygonales
2015	Polygonum fowleri	Polygonaceae	Caryophyllales
2020	Polygonum fowleri	Polygonaceae	Caryophyllales

Priority Score

This species is not designated as may be at risk

Trends in rounded national ranks

Year	Rounded National Rank	Description of the change	Reason for change
2005	Secure
2010	Secure
2015	Secure
2020	Apparently Secure	Increased level of risk.	Criteria revision.

Original Ranks:

Canada
2005	Secure - 4
2010	Secure - 4
2015	Secure - N5
2020	Apparently Secure - N4N5

Yukon
2005	Exotic - 7
2010	Not Present
2015	Not Applicable - SNA
2020	Not Applicable - SNA

Northwest Territories
2005	May Be At Risk - 2
2010	May Be At Risk - 2
2015	Imperiled - S2
2020	Imperiled - S2

Nunavut
2005	May Be At Risk - 2
2010	May Be At Risk - 2
2015	Unrankable - SU
2020	Vulnerable - S3

British Columbia
2005	Sensitive - 3
2010	Sensitive - 3
2015	Apparently Secure - S4
2020	Apparently Secure - S4

Alberta
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Saskatchewan
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Manitoba
2005	Undetermined - 5
2010	Undetermined - 5
2015	Critically Imperiled - S1
2020	Critically Imperiled - S1

Ontario
2005	Secure - 4
2010	Secure - 4
2015	Apparently Secure - S4?
2020	Apparently Secure - S4?

Quebec
2005	Secure - 4
2010	Secure - 4
2015	Secure - S5?
2020	Apparently Secure - S4

New Brunswick
2005	Secure - 4
2010	Secure - 4
2015	Apparently Secure - S4
2020	Apparently Secure - S4

Nova Scotia
2005	Secure - 4
2010	Secure - 4
2015	Vulnerable - S3S4
2020	Apparently Secure - S4

Prince Edward Island
2005	Undetermined - 5
2010	Undetermined - 5
2015	Critically Imperiled - S1
2020	Critically Imperiled - S1

Newfoundland and Labrador
2005	Not Assessed - 6
2010	Undetermined - 5
2015
2020

Labrador
2005
2010
2015	Vulnerable - S2S4
2020	Vulnerable - S2S4

Newfoundland
2005
2010
2015	Vulnerable - S3S4
2020	Vulnerable - S3S4

Pacific Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Western Arctic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Eastern Arctic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Atlantic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present