Biscutella didyma, commonly known as buckler mustard, is a species of annual herb in the family Brassicaceae.
Individuals can grow to 4 cm. They have a self-supporting growth form and simple, broad leaves and dry fruit. Flowers are visited by nomad bees, syrphid flies, the hoverfly Chrysotoxum intermedium, and the fly Hebecnema fumosa.[1] [2]