Field Pennycress

Scientific Name: Thlaspi arvense

Family: Brassicaceae

Where Found: Found in different parts of the U.S.; many grow readily in disturbed soils, in waste areas and with cultivated crops.

Toxicity: Toxic to Horses

Toxic Principles: Isothiocyanates

Clinical Signs: The plant is not typically ingested unless other forage is unavailable, or the plant is incorporated into hay. Poisonings occur most commonly from first and sometimes second cuttings of hay. The toxic component is an irritant, and causes digestive tract irritation.

Credit: Jim Stasz @ USDA-NRCS PLANTS Database

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