|
Definition of Blue thistle
1. Noun. A coarse prickly European weed with spikes of blue flowers; naturalized in United States.
Exact synonyms: Blue Devil, Blueweed, Echium Vulgare, Viper's Bugloss
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Echium, Genus Echium
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Echium, Genus Echium