Pentaglottis sempervirens
English: Green alkanet; Evergreen bugloss; Alkanet.
Botany: bristly, perennial plant.
Dutch: Overblijvende ossentong.
Region: Western Europe.
Botany: bristly, perennial plant; ± 80 cm; in damp or shaded places, close to buildings; flowers brilliant blue; leaves evergreen; calcicolous, caustic soil; blooms in spring, early summer; stamens hidden inside narrow flower-tubes as a white eye in the centre of a blue flower.