Onobrychis Viciifolia is a species of legume that goes by several names and synonyms. Some of these include common sainfoin, holy hay, French grass, and cockshead. It can also be referred to as Hedysarum coronarium, a name previously used for the same plant. This plant is a popular forage crop and has been used in livestock farming for centuries. It is highly nutritious and has several medical properties, making it an essential plant for many farmers and herbalists. While it may go by different names, the benefits and uses of Onobrychis Viciifolia are well-documented and recognized worldwide.