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 Bristly Greenbrier safe for cats?
Smilax hispida
Bristly Greenbrier is a woody, climbing vine native to North America, often found in thickets and woodlands. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Bristly GreenbrierHairy GreenbrierSmilax hispida
- Light
- Partial shade to full sun
- Habit
- Climbing vine
- Care
- Low
Safety status
What this means for your cat
Bristly Greenbrier is safe for cats — ASPCA classifies Smilax hispida as non-toxic to cats with no toxic principle on file. A curious nibble of the spiny vine isn't a poisoning risk, though the prickles themselves can scratch a cat's mouth and a mouthful of tough fiber may produce a brief, self-limiting bout of vomiting.
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 material may cause mild vomiting or diarrhea.
Escalation note
This plant is considered non-toxic. If your cat consumes a significant amount and shows signs of distress, contact your veterinarian.
Bring it home
Bristly Greenbrieris 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 Bristly Greenbrier is listed as non-toxic to both cats and dogs.
NC State Extension Plant Toolbox
botanical · 94% reliability
Smilax hispida is a native woody vine known for its prickly stems and dark blue-black berries.
Same cat verdict
Related plants for cats
Cosmos
Cosmos bipinnatus
Garden cosmos is a daisy-like annual usually treated as a pet-safe flowering option, though any large plant ingestion can still cause mild stomach upset.
Generally safe for cats & dogs.
African Violet
Saintpaulia spp.
African Violets are popular, low-growing flowering houseplants known for their fuzzy leaves and vibrant blooms. They are considered non-toxic to both cats and dogs.
Generally safe for cats & dogs.
Spider Plant
Chlorophytum comosum
The spider plant is a popular, easy-to-care-for houseplant known for its arching, grass-like foliage and trailing plantlets. It is widely considered safe for households with pets, though large ingestions of fibrous material may occasionally cause mild digestive upset.
Generally safe for cats & dogs.