 "Onobrychis" typically have a deep taproot and so are very drought resistant, but do not recover well from overgrazing.Adapted to slow but steady growth in the arid steppe belt of Eurasia, sainfoins are difficult to establish as pasture, are not persistent in grassland, and only yield one crop of hay or seeds per year.Thus they are seldom grown in any significant extent, though "O. viciifolia" is met with somewhat more regularly.