Lithospermum purpurocaeruleum, the purple gromwell, is a herbaceous perennial rhizomatous plant of the genus Lithospermum, belonging to the family Boraginaceae.
The Latin name of the species purpurocaeruleum means purple and blue, referred to the changing colour of the flowers with the progress of flowering.
Lithospermum purpurocaerula is a bushy plant that reaches on average 20–60 centimetres (7.9–23.6 in) of height, with a maximum of 70 centimetres (28 in). The stem is hairy, erect and unbranched. ...