Description biennial Grass provided with ready basal leaves in rosette from which, to the second year, the stem emerges approximately from a meter of height. The root is fusiform and blackish, the turgid, graft stem, place setting of hairs. The inferior leaves oblong and are lanceoladas, whereas caulinares is sésiles, whole, amplexicaules. All the leaf is covered with tomento. The inflorescencia is an ear of red or violet color. The chalice of the flowers is pentasépalo. The fruit is made up of four aquenios slightly aculeados. When blooming the plants, the basal leaves dry up. It grows in slopes of mounts, stony places, very occasionally in the level one. One takes shelter at the end of spring of the second year.
Way of use: Decocción, flowed extract, tincture, juice.
Note: This species is known from the antiquity. It must be used wisely because of the narcotic effects that can take place to high doses. In use external normally cataplasm is used as on the cracks and the hemorroides. The homeopáticas preparations very are indicated against the insomnia.