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[chahr-luh k] /ˈtʃɑr lək/
a wild mustard, Brassica kaber, having lobed, ovate leaves and clusters of small, yellow flowers, often troublesome as a weed in grainfields.
Origin of charlock
before 1000; Middle English cherlok, Old English cerlic < ? Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for charlock
Historical Examples
  • One species of charlock will supplant another, and so in other cases.

  • Tares, turnip-fly, charlock, couch-grass and their like—these were his enemies which he hated.

    The Land's End W. H. Hudson
  • It is no more welcome to the farmer than the Poppy and the charlock are.

    Wildflowers of the Farm Arthur Owens Cooke
  • charlock, “Indian rape,” and other seeds of the Brassicaceæ, are mixed with genuine seed.

  • One species of charlock has been known to supplant another species; and so in other cases.

    On the Origin of Species Charles Darwin
  • In due time you will get a really fine crop of groundsel, charlock, and slugs, with enough bind-weed to strangle the sea-serpent.

    Cakes & Ale Edward Spencer
  • There is the wild radish, or charlock, which grows in our grain fields, and troubles the farmers very much.

    The Old Market-Cart Mrs. F. B. Smith
  • Pretty as the yellow blossoms of the charlock are, it is one of the most troublesome weeds which the farmer has to fight.

    Wildflowers of the Farm Arthur Owens Cooke
  • Then the charlock sprang up before the crop of corn or turnips was sown; thus it could be rooted out.

    Wildflowers of the Farm Arthur Owens Cooke
  • There is more seed than blossom here to-day, for the flowering time for charlock is in June.

    Wildflowers of the Farm Arthur Owens Cooke
British Dictionary definitions for charlock


Also called wild mustard. a weedy Eurasian plant, Sinapis arvensis (or Brassica kaber), with hairy stems and foliage and yellow flowers: family: Brassicaceae (crucifers)
white charlock Also called wild radish, runch (rʌntʃ). a related plant, Raphanus raphanistrum, with yellow, mauve, or white flowers and podlike fruits
Word Origin
Old English cerlic, of obscure origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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