Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Malus sylvestris
Also known as Malus domestica
The apple tree is a deciduous fruit-bearing plant known for its edible fruit, though the seeds and foliage contain cyanogenic glycosides that can be harmful if ingested in large quantities. While the fruit flesh is generally safe, the plant parts containing amygdalin pose a risk to pets.
Safety status
Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Cats are toxic-listed for apple by the ASPCA, but the danger isn't the fruit flesh — it's the seeds, leaves, and stems, which release cyanide when chewed. Cats rarely eat enough plant material to develop full cyanide poisoning, but exposure to wilted leaves or chewed seeds is a real risk worth a vet call.
Watch for brick-red gums and mucous membranes, dilated pupils, rapid or labored breathing, panting, drooling, vomiting, and weakness. Severe cases progress to shock and collapse. Mild oral irritation alone after a small nibble is more likely than full cyanide signs in cats.
ASPCA does not publish cat-specific onset times. Cyanide is fast-acting in mammals once released, so signs that appear are likely to develop within minutes to a couple of hours of ingestion. Exact feline timing is not well documented.
Call your vet or ASPCA Animal Poison Control (888-426-4435) immediately if you see red or bluish gums, panting, or any breathing change. Even without symptoms, call for guidance if your cat chewed leaves, stems, or whole seeds — especially from a wilting branch.
Per ASPCA: contact your veterinarian or ASPCA Animal Poison Control (888-426-4435). Do not induce vomiting unless a veterinary professional directs you to. Remove any remaining plant material from your cat's reach so further chewing is impossible.
Sources: ASPCA.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Dilated pupils, rapid breathing, hyperventilation, and potential shock.
Escalation note
Toxicity is primarily associated with the seeds and foliage. If your cat has ingested significant amounts of plant material, contact your veterinarian immediately.
Safer alternatives
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Plants of the World Online (Kew)
botanical · 95% reliability
Accepted botanical nomenclature for Malus sylvestris.
Same cat verdict

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