Fabaceae
Stiff pea
Lathyrus rigidus
- Family
- Fabaceae
- Genus
- Lathyrus
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Common names
By language (1)
- English
- Stiff pea
Synonyms
- Lathyrus albus A.Gray
- Lathyrus albus S.Watson
Flowers
- In flower
- April to May (from 7 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb, Vine
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: James H. Thomas, CC BY 4.0, from iNaturalist 
FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist 
FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist 
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons 
Photo: James H. Thomas, CC BY 4.0, from iNaturalist 
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Daniel Kennedy, CC BY 4.0, from iNaturalist 
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons 
Photo: James H. Thomas, CC BY 4.0, from iNaturalist 
Photo: Daniel Kennedy, CC BY 4.0, from iNaturalist 
Photo: Drew Meyer, CC0, from iNaturalist 
Photo: James H. Thomas, CC BY 4.0, from iNaturalist
More in Lathyrus
- PeaLathyrus oleraceusFabaceae
- Sweet peaLathyrus odoratusFabaceae
- White peaLathyrus sativusFabaceae
- Meadow vetchlingLathyrus pratensisFabaceae
- Tuberous sweetpeaLathyrus tuberosusFabaceae
- Yellow peaLathyrus aphacaFabaceae
- Flat peaLathyrus sylvestrisFabaceae
- Marsh peaLathyrus palustrisFabaceae
- Perennial peaLathyrus latifoliusFabaceae
- Spring-vetchLathyrus vernusFabaceae
- Beach peaLathyrus japonicusFabaceae
- Bitter vetchLathyrus linifoliusFabaceae
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.