Berteroa incana is toxic to horses. The reported severity is critical. Also known as Hoary Alyssum.
This plant is known to be potentially deadly!
If your animal ate this plant, call your veterinarian now, or one of these services.
What do I do right now?
Ireland has no animal poison service for owners. Call your veterinarian. An Irish veterinarian can consult the Veterinary Poisons Information Service in the United Kingdom.
Giftinformationscentralen stopped answering questions about animals on 1 July 2018. Call your veterinarian or an animal hospital.
Fever Laminitis Bloody Diarrhea Death Diarrhea Shock Stiffness
The color of each symptom follows the severity scale above.
Berteroa incana is a species of flowering plant in the mustard family, Brassicaceae. Its common names include hoary alyssum, false hoary madwort, hoary berteroa, and hoary alison. It is a biennial herb native to Eurasia and it has been introduced to western Europe and North America. It is listed as an invasive noxious weed in some areas of United States and Canada
The plant is toxic to horses. Green and dry material is sometimes found in alfalfa feed. Signs of poisoning include lameness due to laminitis and leg edema, stiffness, fever, diarrhea, intravascular hemolysis, hypovolemic shock, premature birth, abortion, gut ulceration, edema of the kidneys, pulmonary edema, and calcium crystals in the urine. It can be fatal, but most horses survive with treatment. The toxic compound is not known.
Also recorded as Hoary Alison, Hoary False Alyssum, Hoary False Madwort and hoary-alyssum.
More from the Brassicaceae family:
Countries with the most wild observations, from GBIF data.