I'm no veterinarian, nor am I a botanist, but I do believe there's nothing poisonous in poinsettias.
they are non-toxic and at worst the animal that Ingested it will get a stomach ache nothing else....Its a myth that this plant is poisonous.
Answered Feb 15, 2010
Edited Feb 16, 2010
You need to contact a vet they have a list of poisonous and non poisonous flowers, they will be able to tell you if you need to bring your cat in to get fluids in your cat