Valerian (Valeriana officinalis, ) is a hardy flowering , with heads of sweetly scented pink or white flowers. The flowers are in bloom in the northern hemisphere from June to September. Valerian was used as a perfume in the sixteenth century. Native to and parts of , Valerian has been into . It is consumed as food by the of some ( and ) species including . Other names used for this plant include garden valerian (to distinguish it from other Valeriana species), garden heliotrope (although not related to ) and . The garden flower is also sometimes referred to as "valerian" but is a different species, from the same family but not particularly closely related. Valerian, in and , is the name of a or prepared from roots of the plant, which, after , , processes, are conveniently packaged, usually into , that may be used for certain effects including and effect. The amino acid is named after this plant.