Trifolium resupinatum (reversed clover, Persian clover, shaftal, syn. T. resupinatum L. var. majus Boss., T. suaveolens Willd.) is an annual clover used as fodder and hay, which reaches tall when cultivated, and forms rosettes when grazed or mowed. It is native to central and southern Europe, the Mediterranean, and southwest Asia as far south as the Punjab. It is an important hay crop in cold regions of Iran, Afghanistan and other Asian areas with cold winters.