Echium vulgare, known as viper's bugloss and blueweed,[1] is a species of flowering plant in the borage family Boraginaceae.

[6][7] It is a biennial or monocarpic perennial plant growing to 30–80 cm (12–31 in) tall, with rough, hairy, oblanceolate leaves.

[9] The flowers start pink and turn vivid blue, and are 15–20 mm (0.59–0.79 in) in a branched spike, with all the stamens protruding.

It has been introduced to Chile,[11] New Zealand[12] and North America, where it is naturalised in parts of the continent including northern Michigan,[3] being listed as an invasive species in Washington.

[13] It is found in dry, calcareous grassland and heaths, bare and waste places, along railways and roadsides and on coastal cliffs, sand dunes and shingle.