Valerian /(?)/

Va·le·ri·an

Valerian

n.
  1. Any plant of the genus Valeriana. The root of the officinal valerian (Valeriana officinalis) has a strong smell, and is much used in medicine as an antispasmodic. (Bot.)

Phrases & Compounds
Greek valerian
a plant (Polemonium caeruleum) with blue or white flowers, and leaves resembling those of the officinal valerian.