Clasping warea (Warea amplexifolia) (Nutt.)Nutt. is a federally endangered and annual herb in Brassicaceae.  W. amplexifolia is a Florida endemic that occurs in sandhill habitat along the northern half of the Lake Wales Ridge, an ancient sand dune that runs about 150 miles north to south in the center of the Florida peninsula. Sandhill habitat and its species have experienced a steep range-wide decline due to urban land conversion.