Water Hemlock
Cicuta maculata
Dogs: Severe
Cats: Severe
Veterinary Emergency
Veterinary emergency. Considered the most toxic plant in North America. Seizures can begin within minutes.
ASPCA Poison Control: (888) 426-4435 | Pet Poison Helpline: (855) 764-7661
Plant Information
Cowbane, Poison Parsnip, Cicuta
Apiaceae
wild
Highly Toxic — Emergency Risk
Toxicity Details
all parts, roots, stems
Cicutoxin
15 to 90 minutes
severe
Symptoms to Watch For
- Violent seizures
- Excessive salivation
- Tremors
- Respiratory failure
- Sudden death
What to Do
Veterinary emergency. Considered the most toxic plant in North America. Seizures can begin within minutes.
Do not wait for symptoms. Call your vet or poison control immediately.
About Water Hemlock
Water Hemlock is widely regarded as the most violently toxic plant in North America. A single bite of the root can kill a large dog within hours.