Equisetum spp. is toxic to horses. The reported severity is critical. Also known as Horsetails, Horsetails and Field Horsetail.
This plant is known to be potentially deadly!
If your animal ate this plant, call your veterinarian, the ASPCA Animal Poison Control on (888) 426-4435 or the Pet Poison Helpline on (855) 764-7661. Fees may apply.
Weakness Weight Loss Incoordination Tremors Death Seizures Diarrhea CNS Depression
The color of each symptom follows the severity scale above.
Equisetales is an order of subclass Equisetidae with only one living family, Equisetaceae, containing the genus Equisetum (horsetails), as well as a variety of extinct groups, including the tree-like Calamitaceae.
Countries with the most wild observations, from GBIF data.