Streptanthus carinatus, the lyreleaf jewelflower, is an annual to biennial plant in the mustard family (Brassicaceae) found in the Arizona Upland of the Sonoran Desert.[1] Subspecies S. carinatus arizonicus has white to cream colored flowers in its western range, becoming strongly yellow eastward.[1] Subspecies S. carinatus carinatus has purple flowers.[1]