Native Plants

Plant Database

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Polygonum glaucum

Polygonum glaucum Nutt.

Sea-beach Knotweed, Seabeach Knotweed, Seaside Knotweed

Polygonaceae (Buckwheat family)

Synonym(s): Polygonum maritimum

USDA Symbol: POGL7

USDA Native Status: L48 (N)

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Plant Characteristics

Duration: Annual , Perennial
Habit: Herb , Subshrub
Fruit Type: Achene
Size Notes: Up to about 28 inches tall.

Bloom Information

Bloom Color: White , Pink
Bloom Time: Jul , Aug , Sep , Oct , Nov
Bloom Notes: White, margins white or pink.

Distribution

USA: CT , DE , FL , GA , MA , MD , NC , NJ , NY , RI , SC , VA
Native Habitat: Coastal beaches, sand dunes, margins of salt ponds.

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	FACU				FACU				FACU

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 3 - Flora of North America (2014) 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 glaucum in USDA Plants
FNA: Find Polygonum glaucum in the Flora of North America (if available)
Google: Search Google for Polygonum glaucum

Metadata

Record Modified: 2020-11-12
Research By: CBR

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