woad-waxen

from The Century Dictionary.

• noun The dyers' green-weed, Genista tinctoria. See Genista (with cut).

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A leguminous plant (Genista tinctoria).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• 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