WordNet (r) 3.0 (2006):

Cucurbita foetidissima
    n 1: perennial vine of dry parts of central and southwestern
         United States and Mexico having small hard mottled green
         inedible fruit [syn: prairie gourd, prairie gourd vine,
         Missouri gourd, wild pumpkin, buffalo gourd,
         calabazilla, Cucurbita foetidissima]