Maidenhair Tree Toxic?

Updated 2026-03-06| 3 min read| 1,355 found this helpful
Maidenhair Tree
1

Only the seeds of Ginkgo biloba are confirmed toxic, containing the harmful compound ginkgotoxin

2

Ginkgotoxin acts as a vitamin B6 antagonist, disrupting normal nervous system function

3

Consumption of raw unprocessed seeds may trigger severe epileptiform seizures in affected individuals

FAQ

Is Maidenhair Tree toxic to Humans?

Epileptiform seizures (Moderate)

Is Maidenhair Tree toxic to Cats?

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested (Unknown)

Is Maidenhair Tree toxic to Dogs?

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested (Unknown)

Is Maidenhair Tree toxic to Horses?

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested (Unknown)

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Toxicity Details

Humans
Moderate

Epileptiform seizures

Cats
Unknown

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested

Dogs
Unknown

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested

Horses
Unknown

No confirmed toxicity data available; monitor for seizure-like activity, lethargy, or disorientation if seeds are ingested

Toxicity Snapshot

Toxic PartsSeeds
Exposure RouteIngestion of raw, undercooked, or unprocessed ginkgo seeds
Toxic CompoundsGinkgotoxin (4'-O-Methylpyridoxin)

First Aid & Prevention

First 30 Minutes

  • • If ingestion occurred within the past 2 hours and the affected individual is conscious, induce vomiting to remove unabsorbed seeds
  • • Administer activated charcoal to bind remaining toxin in the gastrointestinal tract
  • • Move the individual to a quiet, low-light area to reduce risk of seizure triggers

Contact Vet Immediately

  • • Any seizure activity is observed, regardless of duration
  • • A child, pet, or individual with pre-existing seizure disorders ingests any amount of ginkgo seeds
  • • Lethargy, disorientation, or vomiting persists for more than 1 hour after ingestion

Prevention

  • • Never consume raw or unprocessed ginkgo seeds; only use commercially prepared ginkgo leaf supplements from reputable sources
  • • Rake up and safely dispose of fallen ginkgo seeds to prevent accidental ingestion by children or pets
  • • Clearly label ginkgo trees on residential or public property to warn of toxic seed risk

Treatment & Prognosis

  • • Perform gastrointestinal decontamination via emesis, activated charcoal, or gastric lavage as appropriate for ingestion timing
  • • Administer therapeutic doses of vitamin B6 to counteract ginkgotoxin's antagonistic effects
  • • Provide symptomatic care including anticonvulsant medication and seizure monitoring as needed
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Professional Toxicology

Scientific NameGinkgo biloba L.
AliasesGinkgo、Silver Apricot、Forty-Shilling Tree、Ginko
Toxicity Grade
HumansModerate
CatsUnknown
DogsUnknown
HorsesUnknown
Target Organs
Central Nervous System
Mechanism of Action

• Ginkgotoxin is structurally related to vitamin B6 (pyridoxine), acting as a vitamin antagonist that disrupts B6-dependent neurological functions, leading to seizure onset

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Livestock (cattle, sheep, goats): No confirmed toxicity reports available, but ingestion of ginkgo seeds may pose similar seizure risk as observed in humans
Confusion Risk

The following plants look similar and may be confused:

Common Maidenhair Fern Adiantum aethiopicum
Confusable due to shared 'maidenhair' common name and similarly shaped lobed foliage; ginkgo is a large deciduous tree, while maidenhair fern is a small, non-woody understory plant with no toxic fruiting structures
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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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