Red pea Toxic?

Updated 2026-03-06| 3 min read| 4,446 found this helpful
Red pea
1

Seeds are the most toxic plant part, with toxic compound profiles varying across different Lathyrus species

2

Prolonged ingestion (weeks to months) causes progressive neurological damage, paralysis, and potential fatal outcomes in susceptible animals

3

Birds are classified as severely vulnerable to poisoning from this plant

FAQ

Is Red pea toxic to Humans?

No species-specific toxicity data recorded; related Lathyrus species cause lathyrism (permanent neurological damage) with prolonged high-volume intake (Low)

Is Red pea toxic to Cats?

No confirmed toxicity data reported; monitor for unusual symptoms and consult a veterinarian if ingestion is suspected (Low)

Is Red pea toxic to Dogs?

No confirmed toxicity data reported; seek immediate veterinary care after ingestion of large quantities (Low)

Is Red pea toxic to Horses?

Initial restlessness and skittishness after several weeks of exposure, followed by weakness, colic, uncoordinated gait, hindlimb paralysis, dyspnea after mild excitement, laryngeal stridor, difficulty swallowing, sweating, seizures, weak/arrhythmic pulse, nosebleeds, lip rashes, mane/withers hair loss, possible death by suffocation after months of exposure (Severe)

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Toxicity Details

Humans
Low

No species-specific toxicity data recorded; related Lathyrus species cause lathyrism (permanent neurological damage) with prolonged high-volume intake

Cats
Low

No confirmed toxicity data reported; monitor for unusual symptoms and consult a veterinarian if ingestion is suspected

Dogs
Low

No confirmed toxicity data reported; seek immediate veterinary care after ingestion of large quantities

Horses
Severe

Initial restlessness and skittishness after several weeks of exposure, followed by weakness, colic, uncoordinated gait, hindlimb paralysis, dyspnea after mild excitement, laryngeal stridor, difficulty swallowing, sweating, seizures, weak/arrhythmic pulse, nosebleeds, lip rashes, mane/withers hair loss, possible death by suffocation after months of exposure

Toxicity Snapshot

Toxic PartsPrimarily seeds
Exposure RouteIngestion (consumption of contaminated feed or wild plant material, particularly seeds)
Toxic CompoundsAminopropionitrile; Diaminopropionic acid; Diaminobutyric acid; Cyanoalanine

First Aid & Prevention

First 30 Minutes

  • • Immediately remove all access to the plant and clear remaining plant material from the animal's mouth
  • • Do not induce vomiting for small animals unless explicitly instructed by a veterinarian
  • • Collect a sample of the ingested plant to confirm identification for targeted treatment

Contact Vet Immediately

  • • Confirmed or suspected ingestion of large quantities of the plant, especially its seeds
  • • Observation of neurological signs (uncoordinated movement, paralysis, seizures) following exposure
  • • Presence of respiratory distress, difficulty swallowing, or colic in horses or other livestock

Prevention

  • • Routinely inspect livestock feed to eliminate contamination with Lathyrus cicera seeds or plant matter
  • • Restrict grazing access for horses, cattle, and birds to areas where this species grows densely
  • • Train farm staff and at-risk pet owners to identify toxic Fabaceae plants to avoid accidental exposure

Treatment & Prognosis

  • • Administer decontamination measures such as activated charcoal as clinically appropriate for the exposure timeline
  • • Provide symptomatic supportive care including fluid therapy, anti-seizure medication, and respiratory support as needed
  • • Perform emergency tracheotomy in horses if life-threatening laryngeal obstruction occurs
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Professional Toxicology

Scientific NameLathyrus cicera L.
AliasesFlatpod peavine
Toxicity Grade
HumansLow
CatsLow
DogsLow
HorsesSevere
Target Organs
Central nervous systemRespiratory systemMusculoskeletal systemCardiovascular systemSkin
Mechanism of Action

• Toxic amino acid compounds disrupt normal collagen synthesis and central nervous system neurotransmitter function

• Chronic repeated exposure leads to cumulative, partially irreversible neurological and systemic damage over time

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Symptoms mirror equine poisoning but without laryngeal stridor; signs include reduced milk production, weight loss, apathy, stiff uncoordinated gait, progressive paralysis, and death within days of severe exposure
Birds: Severely toxic (+++); ingestion causes rapid onset of severe poisoning with high mortality risk
Confusion Risk

The following plants look similar and may be confused:

Other vetchling/peavine species Other Lathyrus spp.
Visually similar in leaf, flower, and seed morphology; toxicity profiles and specific toxic compound composition vary widely across Lathyrus species
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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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