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
source: WordNet 3.0
A leguminous plant (Genista tinctoria) of Europe and Russian Asia, and adventitious in America; -- called also greenwood, greenweed, dyer's greenweed, and whin, wood-wash, wood-wax, and wood- waxen.