资料来源 : Webster's Revised Unabridged Dictionary (1913)

Saltbush \Salt"bush`\, n. (Bot.)
   An Australian plant ({Atriplex nummularia}) of the Goosefoot
   family.

资料来源 : WordNet®

saltbush
     n : any of various shrubby plants of the genus Atriplex that
         thrive in dry alkaline soil