The Moonseed (Menispermum canadense) is a plant that is poisonous to dogs and cats. The toxin found in moonseed is dauricine, which has the ability to block potassium channels. It can cause cardiac dysrhythmias, neurologic excitation, and seizures in pets. If your pet has ingested moonseed, do not handle the pet and immediately contact your veterinarian or the Pet Poison Helpline
What is Moonseed?
Moonseed (Menispermum canadense) is a herbaceous annual plant that is native to East and Central North American mountains and prairies. The plant is related to the sunflower family and produces white, yellow, and/or pink flowers at the tops of thin, hairy stems. The seeds, which can be eaten like peanuts, are one of the most nutritious plant foods and are believed to help prevent and cure disease and promote general health.