'blueweed' definitions:

Definition of 'blueweed'

(from WordNet)
noun
A coarse prickly European weed with spikes of blue flowers; naturalized in United States [syn: blueweed, blue devil, blue thistle, viper's bugloss, Echium vulgare]

Definition of 'blueweed'

From: GCIDE
  • blueweed \blue"weed\ n. a coarse prickly European weed (Echium vulgare) with spikes of blue flowers; naturalized in the U. S.
  • Syn: blue devil, blue thistle, viper's bugloss. [WordNet 1.5]