Blueweed

Description:

It is a biennial or monocarpic perennial plant growing to 30–80 cm (12–31 in) tall, with rough, hairy, lanceolate leaves. 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. Stamens remain red and stand out against the blue flowers. It flowers between May and September. It is found in dry, bare and waste places.

Habitat:

It has been introduced to North America and is naturalised in parts of the continent, being listed as an invasive species in Washington.