"Secale cereale" can thrive in subzero environments. Early scientists have observed "Claviceps purpurea" on other Poaceae as "Secale cereale". "Secale cereale" includes cultivated rye and other weedy rye types. This article is a list of diseases of rye ("Secale cereale"). For example, triticale is the hybrid of wheat ("Triticum turgidum") and rye ("Secale cereale"). The wild perennial rye ("Secale montanum") is the ancestor of the cultivated rye ("Secale cereale"). Secalin is a prolamin glycoprotein found in the grain rye, "Secale cereale".