Mummenhoffia alliacea (syn. Thlaspi alliaceum), the garlic pennycress or roadside pennycress, is a species of flowering plant in the family Brassicaceae.[1] It is native to central and southern Europe, and Anatolia, and has been introduced to the United Kingdom and the eastern United States.[2] An erect plant usually tall, it is typically found on roadsides, fields, and other disturbed situations.[1]