Trifolium hybridum

Trifolium hybridum is toxic to horses. The reported severity is critical. Also known as Alsike Clover.

horses

Mild Moderate Severe Critical

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.

Symptoms to watch for

Dermatitis Liver Failure Head Pressing Yawning Recumbency Photosensitivity Jaundice Weight Loss

The color of each symptom follows the severity scale above.

About

Trifolium hybridum, the alsike clover, is a species of flowering plant in the pea family, Fabaceae. The trifoliate leaves are unmarked and the stalked, pale pink or whitish flower head grows from the leaf axils.

How this plant poisons

There is limited evidence of T. hybridum having toxic effects on horses including photosensitization and Alsike clover poisoning. Photosensitivity in horses, also known as alsike rash, is a reversible condition in which the mechanism is unknown. A diet in equestrians of at least 20% T. hybridum over the course of four weeks could lead to poisoning which includes deleterious neurological effects and liver failure. The active toxin is unknown. The plant can irritate skin if handled.

Common Names

  • Alsike Clover

Also recorded as Hybrid Clover and Swedish Clover.

Facts

Family
Fabaceae
Duration
Annual, Perennial
Growth habit
Forb/herb
In the wild
GB, SE, FR, DE, NL, FI + more
Source
Wikipedia, CC BY-SA 4.0
Elsewhere

Countries with the most wild observations, from GBIF data.