Home › Words › Y › yellowweedyellowweedyellowweed · noun — any of several plants with yellow flowers.; Goldenrod (several species in the genus Solidago).Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom yellow + weed.nounAny of several plants with yellow flowers.; Goldenrod (several species in the genus Solidago)e.g.“Solidago rugosa Common throughout. Open, damp to dryish sites: borders of woods, thickets. One of the four important “yellowweeds” of fields.” — 1960, D.S. Erskine, The Plants of Prince Edward Island, Canada Department of Agriculture, page 244:Any of several plants with yellow flowers.; Sneezeweed (several species in the genus Helenium)e.g.“Orange sneezeweed, also called Hoopes sneezeweed, western sneezeweed, owlsclaws, sunflower, and yellowweed, is a perennial plant poisonous to livestock.” — 1940, Forest Service, Wool growers, range owners, range administrators should work together to stop sheep losses from poisonous orange sneezeweed, United States Department of Agriculture, page 3:Any of several plants with yellow flowers.; Dyer's rocket (Reseda luteola)e.g.“time to bring kettles to the barnlot / and boil my dyes— / yellowweed, / red from madder root,” — 1978, Janet Beeler Shaw, Dowry: Poems by Janet N. Beeler, University of Missouri Press, page 14:Any of several plants with yellow flowers.; Ragwort (Jacobaea vulgaris)Any of several plants with yellow flowers.; Wintercress (several species in the genus Barbarea)Any of several plants with yellow flowers.; Ball mustard (Neslia paniculata)Definitions & examples from Wiktionary (CC BY-SA 3.0).