Erect shrublet up to 50cm, with rod-like stems, branching from the base. Leaves lance-shaped, stalkless, light green, sometimes purplish, toothed towards the tip. Flowerhead a loose cluster or dense raceme on long stalk, bright palish-blue flowers with white centres.

After M. de L'Obel (1538-1616), Flemish nobleman and botanist.