Turkey Oak Toxic?

Updated 2026-03-06| 4 min read| 3,446 found this helpful
Quercus cerris L.
1

Toxic tannins are present in all plant parts, with concentrations of 5-20% in bark, up to 15% in leaves, and 4-9% in fruit cotyledons by dry weight

2

Ruminants are at highest risk of severe nephropathy, while monogastric animals primarily develop gastrointestinal symptoms after ingestion

3

Unripe fruits, leaves, bark, buds are toxic, and Turkey Oak wood dust is confirmed as a carcinogenic substance

FAQ

Is Turkey Oak toxic to Humans?

No specific ingestion toxicity data documented, may cause gastrointestinal irritation if large quantities are consumed; wood dust is carcinogenic when inhaled (Low)

Is Turkey Oak toxic to Cats?

No specific toxicity data available, potential gastrointestinal upset if ingested (Low)

Is Turkey Oak toxic to Dogs?

No specific toxicity data available, potential gastrointestinal upset if ingested (Low)

Is Turkey Oak toxic to Horses?

Symptoms onset within 24 hours of ingestion, primarily presenting with gastrointestinal discomfort, potential kidney damage in severe cases (Moderate)

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Toxicity Details

Humans
Low

No specific ingestion toxicity data documented, may cause gastrointestinal irritation if large quantities are consumed; wood dust is carcinogenic when inhaled

Cats
Low

No specific toxicity data available, potential gastrointestinal upset if ingested

Dogs
Low

No specific toxicity data available, potential gastrointestinal upset if ingested

Horses
Moderate

Symptoms onset within 24 hours of ingestion, primarily presenting with gastrointestinal discomfort, potential kidney damage in severe cases

Toxicity Snapshot

Toxic PartsUnripe fruits (higher toxicity than ripe fruits), leaves, bark, buds; oak wood dust is a confirmed carcinogenic substance
Exposure RouteIngestion of toxic plant parts, inhalation of oak wood dust
Toxic CompoundsTannins; Catechins; Oligomeric tannins; Catechin gallates; Catechin glycosides; Dimeric proanthocyanidins; Ellagitannins (e.g. Vescalagin)

First Aid & Prevention

First 30 Minutes

  • • Stop exposure to the plant or wood dust immediately
  • • Induce vomiting under professional guidance if ingestion occurred within 1 hour and the subject is conscious
  • • Rinse mouth thoroughly if plant parts were chewed, or wash exposed skin if in contact with wood dust

Contact Vet Immediately

  • • If large quantities of the plant are ingested by any animal
  • • If symptoms like abdominal pain, bloody diarrhea, discolored urine, lethargy or edema appear
  • • If respiratory discomfort occurs after inhalation of large amounts of oak wood dust

Prevention

  • • Avoid letting livestock or pets access growing areas of Turkey Oak
  • • Wear respiratory protective gear when processing Turkey Oak wood to avoid dust inhalation
  • • Never feed Turkey Oak leaves, fruits or bark to any livestock or pets

Treatment & Prognosis

  • • Perform decontamination procedures including gastric lavage and activated carbon administration
  • • Provide symptomatic supportive therapy including fluid replacement and gastrointestinal mucosal protection
  • • Monitor kidney and gastrointestinal function for at least 72 hours after exposure
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Professional Toxicology

Scientific NameQuercus cerris L.
AliasesAustrian Oak、Zerr-Eiche、Chêne chevelu、Chêne lombard、Chêne cerris、Quercia cerro
Toxicity Grade
HumansLow
CatsLow
DogsLow
HorsesModerate
Target Organs
Gastrointestinal tractKidneys
Mechanism of Action

• Toxicity is induced by tannins and their degradation products

• Tannins cause gastrointestinal mucosal damage, and induce nephropathy in ruminants, while triggering primary gastrointestinal symptoms in monogastric animals

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle (Ruminants): Highest poisoning risk, symptoms onset 3-5 days after ingestion. Early signs include constipation and brown urine, followed by lethargy, anorexia, bloody diarrhea, potential kidney failure and death if untreated
Other ruminants: Similar to cattle, at high risk of developing nephropathy and gastrointestinal lesions after ingestion
Confusion Risk

The following plants look similar and may be confused:

Other oak species Quercus spp.
All oak species have similar leaf and acorn morphology, most also contain toxic tannins, so they are easily confused with Turkey Oak
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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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