Crested Istod is a perennial herbaceous plant of the Istod genus (Plygalaceae).
It differs from the ordinary istod by the presence of a tuft at the top of the brush. The flowers are pinkish-purple, collected in a denser raceme and in greater numbers. It blooms from May to autumn. It grows in meadows, fields, and bushes, it is not often found.
An aqueous decoction of the whole plant is drunk for inflammation of the upper respiratory tract, diseases caused by elevation, heaviness, heart disease, hernia, and uterine bleeding; small babies are bathed when frightened; with tumors do baths.