Onobrychis viciaefolia is a rare species of clover-like plant that is native to high-altitude grasslands in Europe and Asia. It is commonly known as sainfoin, holy clover, or alfaalfa. Sainfoin is derived from the French word "saint foin" which means holy hay because of its high nutritional value for livestock. Holy clover refers to its use as a medicinal plant in traditional medicine. Alfaalfa is a Spanish word, meaning "the best fodder". Synonyms for Onobrychis viciaefolia include esparcette, quitchweed, and wild clover. These alternative names are used to describe the plant's appearance, habitat, and agricultural uses.