资料来源 : WordNet®

Ipomoea fastigiata
     n : tropical American prostrate or climbing herbaceous perennial
         having an enormous starchy root; sometimes held to be
         source of the sweet potato [syn: {wild potato vine}, {wild
         sweet potato vine}, {man-of-the-earth}, {manroot}, {scammonyroot},
          {Ipomoea panurata}]