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

Burgrass \Bur"grass`\, n. (Bot.)
   Grass of the genus {Cenchrus}, growing in sand, and having
   burs for fruit.

资料来源 : WordNet®

burgrass
     n : a grass of the genus Cenchrus [syn: {bur grass}]