WordNet (r) 3.0 (2006):

Joshua tree
    n 1: a large branched arborescent yucca of southwestern United
         States having short leaves and clustered greenish white
         flowers [syn: Joshua tree, Yucca brevifolia]

U.S. Gazetteer Places (2000):

Joshua Tree, CA -- U.S. Census Designated Place in California
   Population (2000):    4207
   Housing Units (2000): 2112
   Land area (2000):     6.119417 sq. miles (15.849217 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    6.119417 sq. miles (15.849217 sq. km)
   FIPS code:            37554
   Located within:       California (CA), FIPS 06
   Location:             34.126979 N, 116.318580 W
   ZIP Codes (1990):     92252
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Joshua Tree, CA
    Joshua Tree