Valerian contributes to the initiation and maintenance of normal sleep quality. Passion flower (Passiflora incarnata), commonly known as passion flower, is a fast-growing climbing plant. Hawthorn (Crataegus oxyacantha) is a thorny shrub with petiolate leaves. The white or pink flowers are highly fragrant and grow in branched corymbs. The flower sumac, the active part of the shrub, contains flavonoids, tannins, triterpenes, steroids, amines, mineral salts and an essential oil responsible for the plants characteristic aroma.