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Polygonum arenastrum Jord. ex Boreau
oval-leaf knotweed

General Information
Symbol: POAR11
Group: Dicot
Family: Polygonaceae
Duration: Annual
Growth Habit: Forb/herb
Native Status: AK   I
HI   I
L48   I
VI   I
Data Source and Documentation
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   




Symbol Scientific Name
POAE3 Polygonum aequale Lindm.
POAVA Polygonum aviculare L. var. arenastrum (Jord. ex Boreau) Rouy
POMO4 Polygonum montereyense Brenckle


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
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 arenastrum Jord. ex Boreau – oval-leaf knotweed

Subordinate Taxa

This plant has no children

Legal Status

U.S. Weed Information
Polygonum arenastrum
common knotweed
ovalleaf knotweed
prostrate knotweed
This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover