Chinese Wisteria Toxic?

Updated 2026-03-06| 2 min read| 3,573 found this helpful

All parts of Chinese wisteria are toxic, with seed pods and seeds containing the highest concentration of harmful compounds.

Ingestion leads to acute symptoms including vomiting, diarrhea, dilated pupils, and circulatory disturbances.

The plant is often confused with other toxic Wisteria species and highly poisonous black locust (Robinia pseudoacacia).

FAQ

Is Chinese Wisteria toxic to Humans?

Vomiting, diarrhea, dilated pupils (mydriasis), circulatory disturbances (Moderate)

Is Chinese Wisteria toxic to Cats?

Expected to cause similar symptoms as humans: vomiting, diarrhea, dilated pupils, circulatory distress if ingested (Moderate)

Is Chinese Wisteria toxic to Dogs?

Expected to cause similar symptoms as humans: vomiting, diarrhea, dilated pupils, circulatory distress if ingested (Moderate)

Is Chinese Wisteria toxic to Horses?

Expected to cause similar symptoms as humans: vomiting (in horses, may present as colic), diarrhea, dilated pupils, circulatory distress if ingested (Moderate)

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Toxicity Details

Humans

Moderate

Vomiting, diarrhea, dilated pupils (mydriasis), circulatory disturbances

Cats

Moderate

Expected to cause similar symptoms as humans: vomiting, diarrhea, dilated pupils, circulatory distress if ingested

Dogs

Moderate

Expected to cause similar symptoms as humans: vomiting, diarrhea, dilated pupils, circulatory distress if ingested

Horses

Moderate

Expected to cause similar symptoms as humans: vomiting (in horses, may present as colic), diarrhea, dilated pupils, circulatory distress if ingested

Toxicity Snapshot

Toxic PartsEntire plant, especially seed pods and seeds

Exposure RouteIngestion is the primary exposure route; skin contact with sap may cause mild irritation in sensitive individuals

Toxic CompoundsWistarin (glycoside, similar to laburnum poison but less potent); Toxic resin; Allantoic acid; Lectins

First Aid & Prevention

First 30 Minutes

• Induce vomiting only if ingestion occurred within the last 15 minutes and the individual is fully conscious
• Rinse mouth thoroughly with clean water to remove remaining plant residue
• Do not give food, drink, or home remedies unless explicitly instructed by a medical or veterinary professional

Contact Vet Immediately

• If a pet or horse has ingested any part of the plant, especially seeds or seed pods
• If symptoms like repeated vomiting, diarrhea, or abnormal pupil size appear after exposure
• If the patient shows signs of circulatory distress (e.g. pale gums, rapid heart rate, lethargy) or loses consciousness

Prevention

• Keep Chinese wisteria plants out of reach of children, pets, and livestock
• Clearly label the plant in home and public gardens to avoid accidental ingestion
• Do not use any part of the plant for cooking, crafts, or herbal remedies without verified safety data

Treatment & Prognosis

• Perform gastrointestinal decontamination (e.g. activated charcoal administration) as recommended by a medical professional
• Provide symptomatic care including fluid therapy to correct dehydration and electrolyte imbalances from vomiting and diarrhea
• Monitor circulatory function closely and provide supportive cardiovascular care as needed

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Professional Toxicology

Scientific NameWisteria sinensis (Sims) DC.; Glycine sinensis Sims

AliasesChinese-glycine、Wisteria、Chinesischer Blauregen (German)、Glycine de Chine (French)、Glicine comune (Italian)

Toxicity Grade

HumansModerate

CatsModerate

DogsModerate

HorsesModerate

Target Organs

Gastrointestinal tractCardiovascular systemCentral nervous system

Mechanism of Action

• Wistarin glycoside irritates the gastrointestinal mucosa, leading to vomiting and diarrhea

• Toxic compounds disrupt cardiovascular function, causing circulatory disturbances

• Lectins contribute to cellular damage and systemic toxicity following ingestion

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle, sheep, goats: Ingestion of seed pods or foliage may cause moderate to severe gastrointestinal distress and circulatory symptoms, with risk increasing with the amount of plant material consumed

Small mammals (rabbits, guinea pigs, hamsters): Even small amounts of ingested plant material can lead to life-threatening gastrointestinal and cardiovascular effects due to their small body size

Confusion Risk

The following plants look similar and may be confused:

Other Wisteria species Wisteria spp.

Visually identical in growth form and flower appearance; all Wisteria species are toxic, so all should be treated as poisonous regardless of specific identification

Black locust Robinia pseudoacacia

Similar woody legume growth form and leaf structure; black locust is significantly more toxic, and can be distinguished by its white, fragrant drooping flower clusters vs. the purple/lavender flowers of Chinese wisteria

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Related Toxic Plants

Common laburnum

Laburnum anagyroides

Highly toxic

Black locust

Robinia pseudoacacia

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Data Sources

1. CliniTox (Universität Zürich)

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