a Eurasian red- or pink-flowered plant widely grown for hay and pasture
a Eurasian red- or pink-flowered plant of the pea family widely grown for hay and pasture on chalk and dry soils because it has long strong roots that can penetrate considerable depths in search of water: Onobrychis viciifolia
[French sainfoin from early French sain healthy (from Latin sanus) + foin hay (from Latin fenum); because of its medicinal properties]