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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.
Plant Characteristics
Duration: PerennialHabit: Vine
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: Stems climbing, up to about 3 feet long.
Bloom Information
Bloom Color: Red , Pink , PurpleDistribution
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 , WVCanada: NB , NL , NS , PE
Growing Conditions
Light Requirement: SunSoil Moisture: Moist
Benefit
Use Food: EDIBLE PARTS: Peas and very young pods. Collect young pods in early summer and peas slightly later. Do not wash with detergent or sanitizer, only water. (Poisonous Plants of N.C.)Warning: POISONOUS PARTS: Seeds. Toxic if ingested in large quantities. Symptoms include Lathyrism"": paralysis, slow and weak pulse, shallow breathing, convulsions. Toxic Principle: Amine, phenol, and glycoside. (Poisonous Plants of N.C.)
Conspicuous Flowers: yes
National Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | OBL | OBL | FACW | FACW | FACW | FACW | OBL |
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Lathyrus palustris in USDA PlantsFNA: Find Lathyrus palustris in the Flora of North America (if available)
Google: Search Google for Lathyrus palustris
Metadata
Record Modified: 2023-01-23Research By: TWC Staff