Secale fragile M.Bieb.
Rye (Secale cereale) is a grass grown extensively as a grain, a cover crop and a forage crop. It is a member of the wheat tribe (Triticeae) and is closely related to both wheat (Triticum) and barley (genus Hordeum). Rye grain is used for flour, bread, beer, crispbread, some whiskeys, some vodkas, and animal fodder. It can also be eaten whole, either as boiled rye berries or by being rolled, similar to rolled oats.
From Middle English rie, reighe, from Old English ryġe, from Proto-West Germanic *rugi, from Proto-Germanic *rugiz, from Proto-Indo-European *Hrugʰís.
Germanic cognates include Dutch and West Frisian rogge, Low German Rogg, German Roggen, Old Norse rugr (Danish rug, Swedish råg); non-Germanic cognates include Russian рожь (rožʹ) and Latvian...