Dogs
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
dog safety reference
Is Cat Brier safe for dogs?
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 dog
Cat brier (Smilax glabra) is on the ASPCA's non-toxic list for dogs, so a chewed leaf or vine tip is not a poisoning event. The realistic concern is mechanical: the woody thorns can lacerate paws, muzzles, and gums when a dog pushes through a brushy patch.
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.
Dogs — 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 dog 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 dogs?
Cat Brier (Smilax glabra) is considered non-toxic to dogs. It is classified as generally safe, meaning it is not expected to cause poisoning or serious harm if your dog chews on or ingests part of the plant.
What happens if a dog eats Cat Brier?
No toxic symptoms are expected from Cat Brier. However, because it is a fibrous, woody vine, eating large amounts of the plant material may cause mild vomiting or diarrhea from the roughage rather than any chemical toxicity.
How much Cat Brier would make a dog sick?
Small amounts are unlikely to cause any reaction at all. Problems, if they occur, are linked to large ingestions of fibrous plant material causing mechanical GI upset — not a toxic dose threshold. If your dog ate a significant amount and seems uncomfortable, contact your veterinarian.
Should I be worried if my dog ate Cat Brier leaves or stems?
A small nibble is not a cause for concern given this plant's non-toxic classification. Watch for vomiting or diarrhea if your dog consumed a large quantity of the tough, fibrous stems or leaves, as the bulk of plant matter can irritate the digestive tract. Call your vet if symptoms persist or your dog seems distressed.
Same dog verdict
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