Sweetpotato (Ipomoea batatas L.) is a member of the morningglory or Convolvulaceae family. Sweetpotatoes have their origins in tropical America, with early remains having been found in Panama, Peru and Mexico. A perennial plant in their native regions, they are typically killed by frost when grown in a temperate climate. Sweetpotatoes are true roots and not tubers as is the case with the Irish Potato (Solanum tuberosum). Because they are true roots they will continue to grow and enlarge as long as the plant continues to grow.