WordNet (r) 3.0 (2006):

pumpkin vine
    n 1: a coarse vine widely cultivated for its large pulpy round
         orange fruit with firm orange skin and numerous seeds;
         subspecies of Cucurbita pepo include the summer squashes
         and a few autumn squashes [syn: pumpkin, pumpkin vine,
         autumn pumpkin, Cucurbita pepo]