Is Buttercup Toxic to Cats?
Also known as: Ranunculus, Crowfoot, Meadow Buttercup · Ranunculus spp.
What makes it toxic
Protoanemonin, released when fresh plant tissue is crushed or chewed. It severely irritates the mouth and gastrointestinal lining and can inflame the kidneys in quantity. Drying the plant destroys the compound.
Warning signs to watch for
Immediate drooling and mouth pain, then vomiting, diarrhea and sometimes blisters on the lips and tongue within hours.
What to do if your cat eats it
Rinse the mouth with water, remove plant material and offer water. Call your vet if vomiting persists, and sooner if the mouth looks blistered or the cat refuses food.
Common questions
Are dried buttercups in hay or bouquets still toxic?
No. Protoanemonin breaks down as the plant dries, so dried buttercups are far less dangerous. Fresh cut flowers are the risky form.
My cat nibbled a buttercup in the garden — will it be okay?
Very likely. The bitter, acrid taste usually stops cats after one bite, causing only short-lived drooling. Monitor for repeated vomiting.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.