资料来源 : WordNet®

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