Cats & 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
Pet safety reference
Rex Begonia Vine
Cissus discolor
Cissus discolor is a striking vining plant known for its velvety, variegated foliage that features shades of silver, green, and deep purple. While not a true begonia, it is a popular ornamental climber that thrives in high-humidity environments.
Cissus discolorClimbing BegoniaRex Begonia Vine
- Light
- Bright indirect light
- Habit
- Vining climber
- Care
- Moderate
Safety status
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, though consumption of large amounts of fibrous plant material may cause mild gastrointestinal upset such as 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 as a precaution.
Dogs — concern notes
Common signs
None expected, though consumption of large amounts of fibrous plant material may cause mild gastrointestinal upset such as vomiting or diarrhea.
Escalation note
This plant is considered non-toxic. If your dog consumes a significant amount and shows signs of distress, contact your veterinarian as a precaution.
Bring it home
Rex Begonia Vineis 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
Climbing Begonia is listed as non-toxic to both cats and dogs.
Plants of the World Online (Kew)
botanical · 95% reliability
Accepted botanical name and distribution data for Cissus discolor.
Questions about Rex Begonia Vine
Is Rex Begonia Vine toxic to cats?
Rex Begonia Vine (Cissus discolor) is considered non-toxic to cats according to ASPCA provenance data. Keeping it in your home poses no known poisoning risk to your cat.
What happens if my cat eats Rex Begonia Vine?
No toxic symptoms are expected. If your cat consumes a large amount of the fibrous plant material, mild gastrointestinal upset such as vomiting or diarrhea is possible simply from the bulk of plant matter, not from any toxic compound.
What should I do if my cat ate a lot of Rex Begonia Vine?
Monitor your cat for vomiting, diarrhea, or signs of distress. Because this plant is non-toxic, serious harm is unlikely, but if symptoms persist or your cat seems unwell after eating a significant amount, contact your veterinarian as a precaution.
Is Rex Begonia Vine the same as a regular begonia, and does that matter for cat safety?
Despite the name, Rex Begonia Vine is not a true begonia — it is Cissus discolor, a member of the grape family. This distinction matters for cat owners because true begonias are considered toxic to cats, while Cissus discolor is classified as non-toxic.
Is Rex Begonia Vine toxic to dogs?
Rex Begonia Vine (Cissus discolor) is considered non-toxic to dogs. According to ASPCA provenance data verified in 2026, this plant is classified as generally safe, meaning it is not expected to cause poisoning.
What happens if my dog eats Rex Begonia Vine?
No toxic reaction is expected, but eating a significant amount of fibrous plant material can cause mild gastrointestinal upset such as vomiting or diarrhea. Symptoms should be brief and self-limiting.
What should I do if my dog ate a large amount of Rex Begonia Vine?
Monitor your dog for vomiting, diarrhea, or signs of distress. Because the plant is non-toxic, serious harm is unlikely, but if GI symptoms persist or your dog seems unwell, contact your veterinarian as a precaution.
Is Rex Begonia Vine the same as a regular begonia — does that change the risk for dogs?
Despite the name, Rex Begonia Vine is Cissus discolor, not a true begonia. True begonias are toxic to dogs, but Cissus discolor is a separate species considered non-toxic — so the name should not cause alarm, though it is still not something you want your dog eating in quantity.
Same genus
More from the Cissus genus
Same safety verdict
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Same growing conditions
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