WordNet (r) 3.0 (2006):

prairie gourd
    n 1: small hard green-and-white inedible fruit of the prairie
         gourd plant
    2: 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]