greenweed
n. 染色用植物之一种
近义词：dyer's-broom，woadwaxen，whin，woodwaxen，dyeweed，Genistatinctoria，
英英释义
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