Lungwort

Is an herbaceous evergreen perennial rhizomatous plant.The upper surface of the leaves has tiny bumps and it is quite hairy. In spring, the plant produces small bunches of flowers. The 5-petals flowers are red or pink at first, later turn to blue-purple. The flowers contain a dye that belongs to the anthocyanins and change the color from red (acidic) to blue (alkaline).
Pollination is granted by bees, bumblebees and butterflies.