yellowweed

noun7

1. •
   Any of several plants with yellow flowers.
2. •
   Goldenrod (several species in the genus Solidago)

   • Solidago rugosa Common throughout. Open, damp to dryish sites: borders of woods, thickets. One of the four important “yellowweeds” of fields. — 1960
3. •
   Sneezeweed (several species in the genus Helenium)

   • Orange sneezeweed, also called Hoopes sneezeweed, western sneezeweed, owlsclaws, sunflower, and yellowweed, is a perennial plant poisonous to livestock. — 1940
4. •
   Dyer's rocket (Reseda luteola)

   • time to bring kettles to the barnlot / and boil my dyes— / yellowweed, / red from madder root, — 1978
5. •
   Ragwort (Jacobaea vulgaris)
6. •
   Wintercress (several species in the genus Barbarea)
7. •
   Ball mustard (Neslia paniculata)