Native Plants

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Polygonum buxiforme

Polygonum buxiforme Small

Box Knotweed

Polygonaceae (Buckwheat Family)

Synonym(s): Polygonum aviculare var. littorale, Polygonum littorale

USDA Symbol: POBU2

USDA Native Status: L48 (N), AK (N), CAN (N)

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Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Achene
Size Notes: Variable. Stems sometimes unbranched, erect to ascending, up to about 6 inches tall. Also found with numerous, procumbent, mat-forming, extensively branched stems, up to about 6 feet long.

Bloom Information

Bloom Color: White , Pink , Green
Bloom Time: Jul , Aug , Sep , Oct , Nov

Distribution

USA: AK , AR , AZ , CO , CT , DC , IA , ID , IL , IN , KS , KY , MA , ME , MN , MO , MT , ND , NE , NH , NJ , NY , OH , OK , OR , PA , RI , SC , SD , TN , VA , VT , WA , WI , WV , WY
Canada: NB , NL

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Polygonum buxiforme in USDA Plants
FNA: Find Polygonum buxiforme in the Flora of North America (if available)
Google: Search Google for Polygonum buxiforme

Metadata

Record Modified: 2023-01-12
Research By: TWC Staff

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