Plant toxicology for cats
Is Bracken Fern toxic to cats?
Pteridium aquilinum · Dennstaedtiaceae
Verdict: Is Bracken Fern toxic to cats?
Yes — Bracken Fern is toxic to cats. Bracken Fern (Pteridium aquilinum) can make a cat ill. Risk depends on the amount, plant part, body size and the individual animal.
Checking your pet profiles…
Call your veterinarian or a pet poison service
Remove plant material from the mouth, offer a small amount of water, and contact a veterinary professional. Do not induce vomiting unless instructed.
- 1Remove plant material from your pet’s mouth and offer a small amount of water.
- 2Call your veterinarian or a pet poison service for advice.
- 3Do not induce vomiting unless a veterinary professional instructs you to.
Possible signs after Bracken Fern exposure include:
- Weight loss
- Wobbliness
- Gut slowdown
- Weakness
- Anaemia with long exposure
Typical onset: Chronic — days to weeks of repeated eating
Thiaminase, which destroys vitamin B1, plus the carcinogen ptaquiloside
Veterinary sources
Reviewed by Dr. Patti McCartney, Animal Naturopathic Doctor. This educational guide supports, but does not replace, diagnosis or treatment from a licensed veterinarian. Risk varies by dose, plant part, body size and health history.