Pet safety
Is Round-leafed Stephaniatoxic to cats & dogs?
Stephania rotunda
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Stephania rotunda
Is round-leafed stephania safe for cats and dogs?
Toxic — the ASPCA lists round-leafed stephania as a clear no for cats and dogs. The painful part for the pet is usually quick and intense; the right move is to keep it out of any room a pet roams unsupervised. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Stephania rotunda contains pharmacologically potent isoquinoline alkaloids (including l-tetrahydropalmatine and cepharanthine) used in traditional medicine and pharmaceutical research. These alkaloids are toxic to animals and humans in uncontrolled doses. The genus is not individually listed by ASPCA, but due to confirmed alkaloid toxicity, the plant should be kept away from pets and children.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats round-leafed stephania?
Stephania rotunda contains pharmacologically potent isoquinoline alkaloids (including l-tetrahydropalmatine and cepharanthine) used in traditional medicine and pharmaceutical research. These alkaloids are toxic to animals and humans in uncontrolled doses. The genus is not individually listed by ASPCA, but due to confirmed alkaloid toxicity, the plant should be kept away from pets and children. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to round-leafed stephania, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate round-leafed stephania
- Remove any plant material from your pet's mouth and move round-leafed stephania out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of round-leafed stephania to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to round-leafed stephania
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Peperomia — non-toxic to cats and dogs (care guide)
- Cast iron plant — non-toxic to cats and dogs (care guide)
- Spider plant — non-toxic to cats and dogs (care guide)
- Ponytail palm — non-toxic to cats and dogs (care guide)
Round-leafed Stephania and pets — frequently asked questions
Is round-leafed stephania toxic to cats?
Round-leafed Stephania (Stephania rotunda) is toxic to cats according to the ASPCA. Stephania rotunda contains pharmacologically potent isoquinoline alkaloids (including l-tetrahydropalmatine and cepharanthine) used in traditional medicine and pharmaceutical research. These alkaloids are toxic to animals and humans in uncontrolled doses. The genus is not individually listed by ASPCA, but due to confirmed alkaloid toxicity, the plant should be kept away from pets and children. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is round-leafed stephania toxic to dogs?
Per the ASPCA, Round-leafed Stephania (Stephania rotunda) is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like round-leafed stephania is best removed from the floor and low shelves entirely.
What happens if my pet eats round-leafed stephania?
Stephania rotunda contains pharmacologically potent isoquinoline alkaloids (including l-tetrahydropalmatine and cepharanthine) used in traditional medicine and pharmaceutical research. These alkaloids are toxic to animals and humans in uncontrolled doses. The genus is not individually listed by ASPCA, but due to confirmed alkaloid toxicity, the plant should be kept away from pets and children. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to round-leafed stephania, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate round-leafed stephania?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of round-leafed stephania to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to round-leafed stephania?
If you want a similar look without the risk, good non-toxic swaps include peperomia, cast iron plant, spider plant, ponytail palm. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full round-leafed stephania care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete round-leafed stephania care guide, or browse the full pet-safe plant library to check another plant before you buy it.