Buttercup — (c) Dmitry Kulakov, some rights reserved (CC BY), uploaded by Dmitry Kulakov
Photo by (c) Dmitry Kulakov, some rights reserved (CC BY), uploaded by Dmitry KulakoviNaturalistCC BY
Pet safety reference

Buttercup

Ranunculus spp.

Buttercups are flowering plants known for their bright, cup-shaped blooms, but they contain compounds that can cause irritation if ingested. They are generally considered toxic to household pets due to the presence of protoanemonin.

ButtercupCrowfootRanunculusRanunculus spp.
Light
Full sun to partial shade
Habit
Herbaceous perennial
Care
Moderate

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

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.

Catsconcern notes

Common signs

Drooling, vomiting, diarrhea, and oral irritation or blistering.

Escalation note

Ingestion can cause significant gastrointestinal distress. Please contact your veterinarian immediately if you suspect your cat has consumed any part of this plant.

Dogsconcern notes

Common signs

Excessive salivation, abdominal pain, vomiting, and potential mouth sores.

Escalation note

The plant contains irritant sap that can cause discomfort upon contact or ingestion. Seek veterinary care if your dog shows signs of distress after exposure.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Buttercup is toxic to both cats and dogs, causing gastrointestinal irritation.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Ranunculus species are known to be toxic to livestock and pets due to the compound protoanemonin.

cats safety pageMy cat ate Buttercupdogs safety pageMy dog ate Buttercup

Questions about Buttercup

Are buttercups toxic to cats?

Yes, buttercups (Ranunculus spp.) are toxic to cats. They contain protoanemonin, a compound that causes oral irritation, drooling, vomiting, and diarrhea. Symptoms are typically uncomfortable but not life-threatening in most cases.

What symptoms will my cat show after eating a buttercup?

The earliest signs are heavy drooling, pawing at the mouth, and visible irritation or small ulcers on the tongue or gums, usually appearing within about 3 hours of chewing. These are often followed by vomiting, diarrhea, and reduced appetite. Larger ingestions can also cause depression and a wobbly gait.

What should I do if my cat ate a buttercup?

If you can do so safely, gently wipe your cat's mouth and remove any plant pieces stuck on the teeth or fur. Do not try to make your cat vomit and do not give over-the-counter medications. Call your vet or ASPCA Animal Poison Control at (888) 426-4435 before coming in so they can advise on next steps.

What chemical in buttercups makes them harmful to cats?

Buttercups contain protoanemonin, an irritating compound released when the plant is chewed or crushed. It causes direct irritation and blistering to the mouth, tongue, and gastrointestinal tract. Most cats recover within 24–48 hours once the compound is cleared and oral pain is managed, though oral ulcers can take several days to fully heal.

Are buttercups toxic to dogs?

Yes, buttercups (Ranunculus spp.) are potentially toxic to dogs. They contain protoanemonin, an irritant compound in the sap that causes discomfort on contact and if ingested.

What symptoms will my dog show after eating a buttercup?

Expect heavy drooling and pawing at the mouth first, often with a foul-smelling breath from blistering. This can be followed by vomiting, diarrhea, abdominal pain, and mouth sores. In cases of large ingestions, depression, wobbly gait, weakness, or labored breathing have been reported, and stool may contain blood if the GI tract is significantly irritated.

What should I do if my dog ate a buttercup?

Remove any plant material from your dog's mouth and offer fresh water, but do not induce vomiting and do not give human pain or stomach medications. Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 before transporting so they can prepare care — a vet may start activated charcoal or IV fluids on arrival depending on how much was eaten.

How long does buttercup poisoning last in dogs?

Signs typically appear within 3–6 hours of ingestion. Most dogs recover within 24–48 hours with fluids and a bland diet, though oral ulcers can take several days to heal and a soft diet for about a week is commonly recommended.

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