PLANTS Profile for Polygonum douglasii ssp. engelmannii (Engelmann's knotweed)

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PLANTS Profile

Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi
Engelmann's knotweed

Symbol:

PODOE

Group:

Dicot

Family:

Polygonaceae

Duration:

Annual

Growth Habit:

Forb/herb

Native Status:

L48		N
CAN		N

More Information:

Images:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

See all the Polygonum thumbnails at the PLANTS Gallery

Synonyms:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

	PODOM4	Polygonum douglasii Greene var. microspermum (Engelm.) Dorn
	POEN	Polygonum engelmannii Greene
	POMI14	Polygonum microspermum (Engelm.) Small
	POTEM	Polygonum tenue Michx. var. microspermum Engelm.

Distribution:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi


View Native Status

See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (CO, ID, MT, NV, UT, WY), CAN (AB, BC)

Related Taxa:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

View 33 genera in Polygonaceae, 80 species in Polygonum, 7 subspecies in Polygonum douglasii Greene

Classification:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

Click on a scientific name below to expand it in the PLANTS Classification Report.


Kingdom	Plantae – Plants
Subkingdom	Tracheobionta – Vascular plants
Superdivision	Spermatophyta – Seed plants
Division	Magnoliophyta – Flowering plants
Class	Magnoliopsida – Dicotyledons
Subclass	Caryophyllidae
Order	Polygonales
Family	Polygonaceae – Buckwheat family
Genus	Polygonum L. – knotweed
Species	Polygonum douglasii Greene – Douglas' knotweed
Subspecies	Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi – Engelmann's knotweed

Threatened and Endangered Information:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

The related entities italicized and indented below are listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.

Iowa:
Polygonum douglasii
Douglas' knotweed		Endangered
Maine:
Polygonum douglasii
Douglas' knotweed		Threatened
New Hampshire:
Polygonum douglasii
Douglas' knotweed		Threatened
New York:
Polygonum douglasii
Douglas knotweed		Threatened
Vermont:
Polygonum douglasii
Douglas knotweed		Endangered

Wetland Indicator Status:

NOTE: On June 1, 2012, the 2012 National Wetland Plant List superseded the information below (see Federal Register, May 9, 2012, 77(90): 27210-27214[https://federalregister.gov/a/2012-11176]). For updated wetland information about this species, see the latest wetland list.

Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

Polygonum douglasii:

Nat. Ind.

Reg. 1

Reg. 2

Reg. 3

Reg. 4

Reg. 5

Reg. 6

Reg. 7

Reg. 8

Reg. 9

Reg. 0

Reg. A

Reg. C

Reg. H

UPL,FAC

UPL

FACU

FAC

FACU-

UPL

FACU

Interpreting Wetland Indicator Status

More Accounts and Images:
Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi

View species account and distribution map from Flora of North America (FNA).

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 524555.

Time Generated: 05/19/2013 11:42 AM CDT