mid-veins

Updated: June 21, 2025

Young plants are often marked by the pale red tinge of the mid-veins, but in adult rosettes, or from lack of sunshine, this hue is often very faint. The leaves are narrow, and a curious feature of this species is the great brittleness of the leaves and stems, especially in annual individuals, especially in those that make their stem and flowers in the first year.

Hugo de Vries - Species and Varieties, Their Origin by Mutation