Swiss pine Toxic?

Updated 2026-03-06| 5 min read| 4,215 found this helpful

European Pinus species including this plant have low toxicity, while other related Pinus variants have moderate to higher toxicity

Toxic compounds include terpenes and diterpene acids that cause kidney, liver, and neurological damage

Only fully dried Pinus specimens should be used as livestock feed, as fresh material carries higher poisoning risk

FAQ

Is Swiss pine toxic to Humans?

No species-specific toxicity data documented; potential effects include mucous membrane irritation, gastrointestinal distress, salivation and fatigue if large quantities are ingested (Low)

Is Swiss pine toxic to Cats?

No species-specific toxicity data documented; potential symptoms include excessive salivation, vomiting, lethargy and limb weakness following ingestion (Low)

Is Swiss pine toxic to Dogs?

No species-specific toxicity data documented; potential symptoms include excessive salivation, vomiting, lethargy and limb weakness following ingestion (Low)

Is Swiss pine toxic to Horses?

No species-specific toxicity data documented; potential symptoms include salivation, gastrointestinal upset, weakness and kidney irritation following ingestion (Low)

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Toxicity Details

Humans

Low

No species-specific toxicity data documented; potential effects include mucous membrane irritation, gastrointestinal distress, salivation and fatigue if large quantities are ingested

Cats

Low

No species-specific toxicity data documented; potential symptoms include excessive salivation, vomiting, lethargy and limb weakness following ingestion

Dogs

Low

No species-specific toxicity data documented; potential symptoms include excessive salivation, vomiting, lethargy and limb weakness following ingestion

Horses

Low

No species-specific toxicity data documented; potential symptoms include salivation, gastrointestinal upset, weakness and kidney irritation following ingestion

Toxicity Snapshot

Toxic PartsBark, needles, young shoots

Exposure RoutePrimary exposure is via ingestion of toxic plant parts; no contact toxicity reported in available data

Toxic CompoundsTurpentine essential oil; α-pinene; carene; β-pinene; limonene; norcamphene; borneol; abietic acid; isocupressic acid

First Aid & Prevention

First 30 Minutes

• Remove all remaining plant material from the mouth of the exposed individual/animal immediately
• Rinse mouth thoroughly with clean, cool water to remove residual plant matter
• Do not induce vomiting unless explicitly directed by a medical or veterinary professional

Contact Vet Immediately

• Any confirmed ingestion of large quantities of Swiss pine parts by pets or livestock
• Appearance of symptoms including excessive salivation, limb weakness, difficulty breathing or persistent gastrointestinal distress
• If a pregnant ruminant is confirmed to have ingested any parts of the plant

Prevention

• Never feed fresh Pinus cembra or other Pinus species to livestock; only use fully dried material if approved for feed
• Keep potted or cut Swiss pine specimens out of reach of household pets and young children
• Learn to distinguish Pinus cembra from higher-toxicity related Pinus species to avoid accidental exposure

Treatment & Prognosis

• Administer decontamination measures including activated charcoal and targeted emesis as appropriate for exposure level
• Provide supportive symptomatic care including fluid therapy to protect kidney and liver function
• Monitor patients for 3-5 days post-exposure for neurological symptoms, respiratory distress and signs of organ damage

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Professional Toxicology

Scientific NamePinus cembra L.

AliasesSwiss stone pine、Arolla pine、Arve、Zirbe、Arolle、Pin cembro、Pino cembro、Cirmolo

Toxicity Grade

HumansLow

CatsLow

DogsLow

HorsesLow

Target Organs

KidneysLiverNervous systemGastrointestinal tractRespiratory systemReproductive system (pregnant ruminants)

Mechanism of Action

• Diterpene compounds including abietic acid exert direct nephrotoxic and neurotoxic effects

• Isocupressic acid in related Pinus species is linked to vascular damage in the placenta leading to abortion in pregnant ruminants

• Volatile terpene compounds cause irritation to mucous membranes and the gastrointestinal tract

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Ingestion of pine needles after the 116th day of pregnancy can cause abortion; non-pregnant cattle may develop salivation, gastroenteritis, hind limb paralysis, kidney/liver damage and death from respiratory paralysis

American bison: Same toxicity profile as cattle, including abortion risk following ingestion of dried Ponderosa pine needles

Small ruminants (sheep, goats): No species-specific data documented; expected to have similar toxicity profile to cattle including organ damage and neurological symptoms following ingestion of large quantities

Confusion Risk

The following plants look similar and may be confused:

Ponderosa pine Pinus ponderosa

Visually similar to Pinus cembra with matching needle structure; has significantly higher toxicity due to higher concentrations of isocupressic acid and abietic acid

Lodgepole pine Pinus contorta

Closely related Pinus species with very similar cone and foliage morphology, carries higher toxicity risk than Pinus cembra

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Related Toxic Plants

Ponderosa pine

Pinus ponderosa

Moderate to High toxicity

Eastern white pine

Pinus strobus

Low to Moderate toxicity

Norway spruce

Picea abies

Low toxicity

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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.