Sagebrush \Sage"brush`\, n. A low irregular shrub (Artemisia tridentata), of the order Compositae, covering vast tracts of the dry alkaline regions of the American plains; -- called also sagebush, and wild sage. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

sagebrush

Source: WordNet (r) 2.0
 

Sagebrush \Sage"brush`\, n. A low irregular shrub (Artemisia tridentata), of the order Composit[ae], covering vast tracts of the dry alkaline regions of the American plains; -- called also sagebush, and wild sage.

Source: Webster's Revised Unabridged Dictionary (1913)