charlock

/ˈtʃɑrlɑk/
noun
  1. A wild plant with yellow flowers, often found in fields and considered a weed.
    • The farmer pulled up the charlock before it spread across the wheat field.
    • Charlock can be a nuisance for gardeners because it grows quickly and takes over flower beds.
    • In spring, the roadside was bright yellow with blooming charlock.
What does "charlock" mean? | whatsthatwordmean | whatsthatwordmean