Japanese cleyera Toxic?

Updated 2026-03-06| 3 min read| 2,176 found this helpful
Cleyera japonica Thunb.
1

No verified toxicity reports for Cleyera japonica exist in available published botanical literature

2

The plant is not classified as toxic to humans, cats, dogs, or horses based on current available data

3

Despite low toxicity risk, the plant is not recommended for use as feed for any livestock or companion animals

FAQ

Is Japanese cleyera toxic to Humans?

No adverse symptoms associated with exposure reported in available research (Non-toxic)

Is Japanese cleyera toxic to Cats?

No adverse symptoms associated with exposure reported in available research (Non-toxic)

Is Japanese cleyera toxic to Dogs?

No adverse symptoms associated with exposure reported in available research (Non-toxic)

Is Japanese cleyera toxic to Horses?

No adverse symptoms associated with exposure reported in available research (Non-toxic)

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Toxicity Details

Humans
Non-toxic

No adverse symptoms associated with exposure reported in available research

Cats
Non-toxic

No adverse symptoms associated with exposure reported in available research

Dogs
Non-toxic

No adverse symptoms associated with exposure reported in available research

Horses
Non-toxic

No adverse symptoms associated with exposure reported in available research

Toxicity Snapshot

Toxic PartsNo toxic plant parts identified; all plant tissue is presumed non-toxic, though not suitable for use as feed
Exposure RouteOral ingestion is the primary potential exposure route; no dermal toxicity has been reported
Toxic Compounds

First Aid & Prevention

First 30 Minutes

  • • Rinse mouth of exposed human or animal with clean water to remove residual plant material
  • • Monitor exposed individuals for any unusual signs of discomfort for 24 hours post-exposure
  • • Collect a plant sample for formal identification if large quantities are ingested

Contact Vet Immediately

  • • If a companion animal displays persistent vomiting, diarrhea, or lethargy after ingestion
  • • If a horse or livestock animal consumes large amounts of the plant as unplanned feed

Prevention

  • • Do not use this plant as a feed source for any companion or livestock animals
  • • Label ornamental plantings clearly to avoid confusion with highly toxic visually similar species
  • • Keep unsupervised young pets and children away from plantings to prevent over-ingestion

Treatment & Prognosis

  • • No specific treatment is required for most exposures, as the plant is presumed non-toxic
  • • Administer mild gastrointestinal support if minor digestive upset occurs after large ingestion
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Professional Toxicology

Scientific NameCleyera japonica Thunb.
AliasesJapanischer Sperrstrauch
Toxicity Grade
HumansNon-toxic
CatsNon-toxic
DogsNon-toxic
HorsesNon-toxic
Target Organs
Mechanism of Action
Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Ruminant livestock (cattle, sheep, goats): Presumed non-toxic, but intentional feeding is not recommended due to limited safety data
Small companion mammals (rabbits, guinea pigs, hamsters): No toxicity reports available; avoid intentional feeding to prevent unforeseen reactions
Confusion Risk

The following plants look similar and may be confused:

Cherry laurel Prunus laurocerasus
Visually similar glossy evergreen foliage; cherry laurel is highly toxic, and can be distinguished by its almond scent when leaves are crushed and small cherry-like fruits
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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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