Is Amorphophallus maximus toxic to cats?

Yes — amorphophallus maximus is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. Amorphophallus maximus, like all members of the genus and the Araceae family, contains insoluble calcium oxalate raphides in corm, leaf and stem. The species is not individually listed by the ASPCA, but the ASPCA classifies directly-listed aroids (e.g. jack-in-the-pulpit, Arisaema) as toxic via insoluble calcium oxalates; treat it as toxic to cats and dogs. Chewing causes oral burning, intense drooling, swelling and vomiting. Keep away from pets and verify with a vet if ingested.

Amorphophallus maximus, like all members of the genus and the Araceae family, contains insoluble calcium oxalate raphides in corm, leaf and stem. The species is not individually listed by the ASPCA, but the ASPCA classifies directly-listed aroids (e.g. jack-in-the-pulpit, Arisaema) as toxic via insoluble calcium oxalates; treat it as toxic to cats and dogs. Chewing causes oral burning, intense drooling, swelling and vomiting. Keep away from pets and verify with a vet if ingested. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to amorphophallus maximus.

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

The ASPCA classification Growli uses applies to both cats and dogs: Amorphophallus maximus is toxic to dogs as well. See the full amorphophallus maximus pet-safety guide for both species.

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.