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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Lathyrus palustris (Marsh pea)
Smith, R.W.

Lathyrus palustris

Lathyrus palustris L.

Marsh Pea, Marsh Vetchling

Fabaceae (Pea Family)

Synonym(s): Lathyrus myrtifolius, Lathyrus palustris ssp. pilosus, Lathyrus palustris var. linearifolius, Lathyrus palustris var. macranthus, Lathyrus palustris var. meridionalis, Lathyrus palustris var. myrtifolius, Lathyrus palustris var. pilosus, Lathyrus palustris var. retusus, Orobus myrtifolius

USDA Symbol: LAPA4

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

Lathyrus palustris has purple flowers and lanceolate stipules and is found in wet meadows and marshes in much of North America, as well as Eurasia.

 

From the Image Gallery

6 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: Stems climbing, up to about 3 feet long.

Bloom Information

Bloom Color: White , Pink , Purple
Bloom Time: Mar , Apr , May , Jun , Jul , Aug

Distribution

USA: AK , CA , CT , DC , DE , GA , IA , ID , IL , IN , KY , MA , MD , ME , MI , MN , MO , NC , ND , NE , NH , NJ , NY , OH , OK , OR , PA , RI , SD , TN , TX , VA , VT , WA , WI , WV
Canada: NB , NL , NS , PE

Benefit

Conspicuous Flowers: yes

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: OBL OBL OBL FACW FACW FACW FACW OBL
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 30 - Calflora (2018) Calflora
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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

Metadata

Record Modified: 2023-01-23
Research By: TWC Staff

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