'blueweed' is a compound word in English, formed from 'blue' (referring to the color of the flowers) and 'weed' (meaning a wild plant).

The term 'blueweed' was created in English to describe plants with blue flowers that are considered weeds, especially Echium vulgare.

Initially, it referred to any weed with blue flowers, but it has become especially associated with Echium vulgare.