Valerian (Latin scientific name: Valeriana officinalis L.) Patrinaceae, valerian is a perennial cold-resistant, flowering, herbaceous plant, up to 120 cm tall; rhizomes are stubby and head-shaped, stems are hollow, and stems and leaves are ovate to wide Oval, corymb panicles are growing at the terminal, the corolla is lavender or white, the filaments are flat, and the flowering and fruit period is July-September.
Valerian grassland is produced in parts of Asia and Europe, and cultivated in North America. Its stems and leaves are used as food by the larvae of some Lepidoptera species (butterfly and moth). The rhizomes and roots of Valerian root are used for medicinal purposes, which can drive wind, antispasmodic, treat bruises and so on. It can also be used as a dietary supplement. Valerian is macerated, ground, and dehydrated, and then placed in convenient packaging, such as capsules, which have calming and anti-anxiety effects. Valerian was used to make spices in the 16th century.