Small Eurasian shrub having clusters of yellow flowers that yield a dye; common as a weed in Britain and the United States; sometimes grown as an ornamental.

synonyms: dyer's-broom, dyer's greenweed, dyeweed, greenweed, whin, woadwaxen, woodwaxen.

Dutch: duindoorn, gaspeldoorn
Polish: janowiec barwierski