Definition of devil's paintbrush in English:

devil's paintbrush

noun

North American
  • A deep orange European hawkweed, which has become naturalized in North America.

    • ‘Early New England farmers called it the Devil's Paintbrush possibly from the reddish orange colour.’
    • ‘You didn't mention where you were located, but in Eastern Canada our soil is very acid, favouring plants like strawberries and 'Devil's Paintbrush'.’