Juneberry Toxic?

Updated 2026-03-06| 5 min read| 4,176 found this helpful
Juneberry
1

All plant parts except fully ripe berries contain cyanogenic glycosides, the primary toxic compound

2

Ruminants are far more sensitive to poisoning than monogastric species (humans, dogs, cats, horses)

3

Severe acute poisoning can cause sudden death in ruminants with little to no prior warning symptoms

FAQ

Is Juneberry toxic to Humans?

Mild gastrointestinal symptoms including salivation, vomiting, abdominal pain and diarrhea if large quantities of toxic plant parts are ingested; severe poisoning is extremely rare in humans (Low)

Is Juneberry toxic to Cats?

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, vomiting, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare (Low)

Is Juneberry toxic to Dogs?

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, vomiting, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare (Low)

Is Juneberry toxic to Horses?

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare (Low)

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Toxicity Details

Humans
Low

Mild gastrointestinal symptoms including salivation, vomiting, abdominal pain and diarrhea if large quantities of toxic plant parts are ingested; severe poisoning is extremely rare in humans

Cats
Low

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, vomiting, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare

Dogs
Low

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, vomiting, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare

Horses
Low

No species-specific clinical data documented; expected mild gastrointestinal symptoms (salivation, abdominal pain, diarrhea) if large quantities of toxic plant parts are ingested, severe poisoning is extremely rare

Toxicity Snapshot

Toxic PartsEntire plant except ripe, fully mature berries
Exposure RouteIngestion of toxic plant parts (leaves, stems, bark, unripe berries)
Toxic CompoundsCyanogenic glycosides (primarily Prunasin)

First Aid & Prevention

First 30 Minutes

  • • Remove any remaining plant material from the mouth of the exposed individual immediately
  • • Induce vomiting only in conscious, alert monogastric animals/humans if ingestion occurred within the last 10 minutes
  • • Move the exposed individual to fresh air and monitor breathing closely for signs of respiratory distress

Contact Vet Immediately

  • • Presence of respiratory distress, convulsions, or bright red mucus membranes
  • • Ingestion of large quantities of leaves, bark or stems by ruminant animals
  • • Persistent gastrointestinal symptoms lasting more than 2 hours after exposure

Prevention

  • • Prevent ruminant livestock from grazing in areas where this plant grows abundantly
  • • Confirm positive identification of the plant before foraging for berries to avoid mix-ups with lookalike species
  • • Dispose of pruned branches and plant trimmings where animals and young children cannot access them

Treatment & Prognosis

  • • Provide respiratory support with 95% oxygen + 5% carbon dioxide ventilation
  • • Administer 1% sodium nitrite solution intravenously at 20-25 mg/kg body weight
  • • Follow with intravenous 25% sodium thiosulfate solution at 0.5-1.25 g/kg body weight
  • • Repeat half the dose of both medications if symptoms persist
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Professional Toxicology

Scientific NameAmelanchier lamarckii F.G.Schroed.
AliasesServiceberry、Shadbush、Snowy mespilus、Lamarck's serviceberry
Toxicity Grade
HumansLow
CatsLow
DogsLow
HorsesLow
Target Organs
Respiratory tractGastrointestinal tractNervous systemCardiovascular system
Mechanism of Action

• Cyanogenic glycosides in plant tissue are broken down by hydrolytic enzymes to release toxic hydrogen cyanide

• Cyanide inhibits cellular oxygen uptake, leading to rapid tissue hypoxia and organ damage

• Ruminants have higher sensitivity as their neutral rumen pH does not inhibit hydrolytic enzyme activity, unlike the acidic stomach of monogastric animals

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Ruminants (cattle, sheep, goats, deer): Extremely high sensitivity; symptoms include salivation, dyspnea, bloating, uncoordinated movement, recumbency, convulsions, bright red blood/mucous membranes, muscle spasms, paralysis, and sudden death within seconds of high-dose exposure with no prior symptoms
Confusion Risk

The following plants look similar and may be confused:

Other Rosaceae family species Various Rosaceae spp.
Share similar morphological features with Amelanchier lamarckii; toxicity varies widely across Rosaceae species, so positive identification is required before consumption or exposure management
Bilberry Vaccinium myrtillus
Produces similar-looking dark edible berries; bilberry leaves are non-toxic, unlike Amelanchier lamarckii leaves, and bilberry has smaller, more oval leaves with serrated edges
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Related Toxic Plants

Wild black cherry
Wild black cherry
Prunus serotina
High toxicity
Peach
Peach
Prunus persica
Moderate toxicity
European crabapple
European crabapple
Malus sylvestris
Low to Moderate toxicity

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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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