greenweed

Noun greenweed has 1 sense

• greenweed(n = noun.plant) dyer's greenweed, dyer's-broom, dyeweed, genista tinctoria, whin, woadwaxen, woodwaxen - 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; Array
is a kind of broom
is a member of genista, genus genista