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 and the City of a Thousand Planets the war, as was the cover-up to prevent the humans from being expelled from Alpha. Valerian and Laureline disagree, stating that the commander has only been trying to save himself from the consequences for his actions, before Valerian knocks him out again. Valerian hands over the pearl he stole, and Laureline persuades him to return the converter too, ignoring procedures. While the Pearls' spacecraft prepares for takeoff, Filitt's pre-programmed robot K-Tron soldiers attack the Pearls, the government soldiers who were sent to assist Valerian, and their support staff, but are ultimately defeated. The spacecraft departs and Filitt is arrested. Valerian