Fabaceae
Marsh pea
Lathyrus palustris
- Family
- Fabaceae
- Genus
- Lathyrus
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Common names
By language (24)
- arz
- لاثيروس بالستريس
- Belarusian
- Чына балотная, Заяччы гарошак
- Bulgarian
- Блатно секирче
- Chinese
- 欧山黧豆, 歐山黧豆, 竹叶马豆
- Czech
- Hrachor bahenní
- Dutch
- Moeraslathyrus
- English
- Marsh pea
- Estonian
- Soo-seahernes
- Finnish
- Rantanätkelmä
- French
- Gesse des marais
- German
- Sumpf-Platterbse
- hsb
- Bahnowy hróšik
- Hungarian
- Mocsári lednek
- Icelandic
- Mýraertur
- Latvian
- Purva dedestiņa
- Lithuanian
- Pelkinis pelėžirnis
- myv
- Чеядавксонь идем вика
- Norwegian Bokmål
- Myrflatbelg
- Persian
- خلر باتلاقی
- Polish
- Groszek błotny
- Slovak
- Hrachor močiarny
- Swedish
- Kärrvial
- Ukrainian
- Горошок болотяний
- Welsh
- Ytbysen y gors
Synonyms
- Lathyrus palustris var. palustris
- Lathyrus viciaeformis Wallr.
- Orobus myrtifolius (Willd.) Hall
- Orobus palustris (L.) Rchb.
- Pisum palustre (L.) E.H.L.Krause
Flowers
- In flower
- June to July (from 426 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb, Vine
- Lifespan
- Perennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native, St. Pierre and Miquelon: native
Photos
FlowerPhoto: Bryce, CC BY 4.0, from iNaturalist 
FlowerPhoto: Юлия, CC BY 4.0, from iNaturalist 
FlowerPhoto: Сергей, CC0, from iNaturalist 
FlowerPhoto: Summit Metro Parks, CC BY 4.0, from iNaturalist 
Photo: Ivar Leidus, CC BY-SA 4.0, from Wikimedia Commons 
Photo: zebedeugalinha, CC BY 4.0, from iNaturalist 
Photo: Kristian Peters -- Fabelfroh 11:19, 28 October 2006, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Kristian Peters -- Fabelfroh 11:19, 28 October 2006, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Nathan Aaron, CC BY 4.0, from iNaturalist 
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Brian Finzel, CC BY-SA 4.0, from iNaturalist 
Photo: Olivier Pichard, CC BY-SA 3.0, from Wikimedia Commons
More in Lathyrus
- PeaLathyrus oleraceusFabaceae
- Sweet peaLathyrus odoratusFabaceae
- White peaLathyrus sativusFabaceae
- Meadow vetchlingLathyrus pratensisFabaceae
- Tuberous sweetpeaLathyrus tuberosusFabaceae
- Yellow peaLathyrus aphacaFabaceae
- Flat peaLathyrus sylvestrisFabaceae
- Perennial peaLathyrus latifoliusFabaceae
- Spring-vetchLathyrus vernusFabaceae
- Beach peaLathyrus japonicusFabaceae
- Bitter vetchLathyrus linifoliusFabaceae
- Black peaLathyrus nigerFabaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.