goldenrod

Short definition from Wiktionary

Noun

1. 1
   Any tall-stemmed plant principally from genus Solidago (also Oligoneuron), usually with clusters of small yellow flowers.
2. 2
   A golden-yellow colour, like that of the goldenrod plant.

Adjective

1. 1
   Of a golden-yellow colour, like that of the goldenrod plant.