Valerian (herb) Valerian (herb) Valerian ("Valeriana officinalis", Caprifoliaceae) is a perennial flowering plant native to Europe and Asia. In the summer when the mature plant may have a height of , it bears sweetly scented pink or white flowers that attract many fly species, especially hoverflies of the genus "Eristalis". It is consumed as food by the larvae of some Lepidoptera (butterfly and moth) species, including the grey pug. Crude extract of valerian root may have sedative and anxiolytic effects, and is commonly sold in dietary supplement capsules to promote sleep. Valerian has been used as a medicinal herb since at least
Valerian (emperor) the town was besieged by the Persians. At the beginning of 260, Valerian was decisively defeated in the Battle of Edessa, and he arranged a meeting with Shapur to negotiate a peace settlement. The truce was betrayed by Shapur, who seized Valerian and held him prisoner for the remainder of his life. Valerian's capture was a tremendous defeat for the Romans. While fighting the Persians, Valerian sent two letters to the Senate ordering that firm steps be taken against Christians. The first, sent in 257, commanded Christian clergy to perform sacrifices to the Roman gods or face banishment. The second,