genista tinctoria

Noun

• 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

Related words

• Synonyms: 
  woodwaxen , dyer's greenweed , dyer's-broom , dyeweed , greenweed , whin , woadwaxen , Genista tinctoria