Vipers Bugloss

Echium vulgare

''Echium vulgare'' is a species of flowering plant in the borage family Boraginaceae. It is native to most of Europe, and western and central Asia and it occurs as an introduced species in north-eastern North America.
Viper's Bugloss Native to Europe and western and central Asia. This shot taken in Pennsylvania, where I saw it in pastures and at the roadside. Also in lowland grassland, grassy woodland and dry sclerophyll forest.
These stems were 75 cm in height.
 Boraginaceae,Boraginales,Echium vulgare,Geotagged,Purple Viper's Bugloss,USA,Vipers Bugloss,botany,flower,pennsylvania,plant,purple flowers,summer

Appearance

It is a biennial or monocarpic perennial plant growing to 30–80 cm tall, with rough, hairy, lanceolate leaves. The flowers start pink and turn vivid blue and are 15–20 mm in a branched spike, with all the stamens protruding. The pollen is blue but the filaments of the stamens remain red, contrasting against the blue flowers. It flowers between May and September. It is found in dry, bare and waste places.
Viper's bugloss - Echium vulgare Viper's bugloss usually grows in cool areas mainly on the Central and Southern Tablelands of New South Wales particularly along roadsides. It is a noxious weed Australia,Echium vulgare,Geotagged,Summer,Vipers Bugloss

Distribution

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

References:

Some text fragments are auto parsed from Wikipedia.