Spathiphyllum spp.
Why is it risky?
Peace lily contains insoluble calcium oxalate crystals, the same irritant found in pothos and philodendron. Despite sharing the word "lily" in its name, it is not a true lily and does not cause kidney failure like Lilium species do. However, it causes significant oral and gastrointestinal irritation and should not be kept in homes with cats.
Affected Systems
Digestive
Symptoms
Oral irritation, excessive drooling, pawing at the mouth, vomiting, difficulty swallowing.
What To Do
Rinse your cat's mouth with water and monitor for symptoms. Contact your vet if vomiting is persistent or your cat shows signs of distress. Unlike true lilies, this is not typically a life-threatening emergency, but veterinary advice is always recommended.
Notes
Peace lily is frequently confused with true lilies (Lilium spp.), which are far more dangerous and cause kidney failure. If you are unsure which type of lily your cat has been exposed to, treat it as an emergency and contact your vet immediately. See also: Lily (Lilium spp.).
Sources
→ ASPCA Animal Poison Control — https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/peace-lily
→ International Cat Care