Cats
Generally safeConsulted references do not classify the plant as toxic for that pet type, while still allowing for mild GI upset if large amounts are chewed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
cat safety reference
Is Bitternut Hickory safe for cats?
Carya cordiformis
The Bitternut Hickory is a deciduous tree known for its distinctively bitter nuts and compound leaves. While generally considered safe for pets, the fibrous nature of the plant material can occasionally cause mild digestive discomfort if consumed in large quantities.
BitternutCarya cordiformisSwamp Hickory
- Light
- Full sun to partial shade
- Habit
- Deciduous tree
- Care
- Low
Safety status
What this means for your cat
Safe for cats — ASPCA lists bitternut hickory as non-toxic to cats with no toxic principle identified. Cats are unlikely to chew on hickory leaves or twigs in any meaningful quantity, and the rare experimental nibble shouldn't cause more than fleeting GI upset.
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
None expected; however, ingestion of large amounts of fibrous plant matter may lead to mild vomiting or diarrhea.
Escalation note
This plant is considered non-toxic. If your cat consumes a significant amount and shows signs of distress, please contact your veterinarian.
Bring it home
Bitternut Hickoryis generally pet-safe in ordinary household exposure. If you’d like one for your space, here’s a starting point.
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Source evidence
ASPCA Toxic Plant List
toxicology · 99% reliability
The Bitternut is listed as non-toxic to both cats and dogs.
NC State Extension Plant Toolbox
botanical · 94% reliability
Carya cordiformis is a native deciduous tree in the Juglandaceae family.
Questions about Bitternut Hickory
Is Bitternut Hickory toxic to cats?
Bitternut Hickory (Carya cordiformis) is considered non-toxic to cats. According to an ASPCA provenance audit, this plant is classified as generally safe, with no toxic compounds expected to cause harm.
What happens if my cat eats Bitternut Hickory leaves or nuts?
No toxic symptoms are expected. If your cat consumes a significant amount of the fibrous plant material — leaves, bark, or nuts — mild vomiting or diarrhea is possible simply due to the bulk and fibrous texture, not from any toxic principle.
What should I do if my cat ate a large amount of Bitternut Hickory?
Since the plant is non-toxic, a small nibble requires no action. If your cat ate a significant quantity and is showing vomiting, diarrhea, or signs of distress, contact your veterinarian — GI upset from fibrous plant matter can occasionally need supportive care.
Are the bitter nuts of Bitternut Hickory dangerous to cats?
The bitterness of Bitternut Hickory nuts comes from tannins and compounds that make them unpalatable, but the plant is classified as non-toxic; no poisoning is expected. Large ingestion of the fibrous nut material could cause mild digestive upset, so non-toxic does not mean a large snack is harmless.
Same cat verdict
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