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 Cat Brier safe for cats?
Smilax glabra
Cat Brier is a hardy, woody vine known for its tough stems and foliage. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Cat BrierGreenbrierSmilax glabra
- Light
- Partial shade to full sun
- Habit
- Vining
- Care
- Low
Safety status
What this means for your cat
Despite the name, cat brier is not a poisoning hazard for cats — the ASPCA classifies Smilax glabra as non-toxic. The bigger risk to a cat is the woody thorns on the vines, not the leaves or berries themselves.
Sources: ASPCA (no first-aid guidance).
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 material may cause mild vomiting or diarrhea.
Escalation note
Generally considered safe. If your cat consumes a significant amount and shows signs of distress, contact your veterinarian for guidance.
Bring it home
Cat Brieris 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
Cat Brier is listed as non-toxic to both cats and dogs.
Plants of the World Online - Smilax glabra
botanical · 95% reliability
Accepted botanical classification for Smilax glabra.
Questions about Cat Brier
Is Cat Brier toxic to cats?
Cat Brier (Smilax glabra) is considered non-toxic to cats. It is classified as generally safe, meaning exposure or minor nibbling is not expected to cause poisoning.
What happens if my cat eats Cat Brier?
No toxic effects are expected from Cat Brier. However, the plant's fibrous material can cause mild vomiting or diarrhea if your cat consumes a large amount — the same kind of GI upset any indigestible plant matter can trigger.
Should I call the vet if my cat ate a lot of Cat Brier?
Non-toxic does not mean harmless in quantity. If your cat ate a significant amount and is showing vomiting, diarrhea, or signs of distress, contact your veterinarian for guidance.
Is the woody vine or stem of Cat Brier more dangerous to cats than the leaves?
No part of Cat Brier is considered toxic to cats. The tough, fibrous stems and foliage are equally non-toxic, though any fibrous plant material eaten in large amounts can irritate the digestive tract and cause transient GI upset.
Same cat verdict
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