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sandbur

or sand·burr

[sand-bur]
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noun
  1. any of various grasses of the genus Cenchrus, having spikelets enclosed in prickly burs.
  2. any of several bur-bearing weeds growing in sandy places, as Franseria acanthicarpa or Solanum rostratum, of the western U.S.
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Origin of sandbur

An Americanism dating back to 1820–30; sand + bur1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018