Vervain

Vervain is a common name for several flowering plants in the genus *Verbena*, especially *Verbena officinalis* (common vervain).

Vervain is a common name for several flowering plants in the genus *Verbena*, especially *Verbena officinalis* (common vervain). These herbaceous plants are often tall and branched, with small clustered flowers, and have a long history of medicinal and cultural use. In North America, the name also refers to native species such as white vervain, blue vervain, and hoary vervain.

Taxonomy

Vervain is a common name applied to plants in the genus *Verbena* of the family Verbenaceae. The term is most often associated with *Verbena officinalis*, but it also includes several other species commonly called vervain.

Description

Vervain species are generally herbaceous plants with opposite or lobed leaves and small flowers in clusters or spikes. Flower colour varies by species, ranging from white to pale purple or blue-purple.

Distribution and habitat

Different vervain species have different native ranges. *V. officinalis* is native to Europe and parts of Asia and is widely naturalised in the UK, while some species such as white vervain and blue vervain are native to North America and often grow in disturbed habitats.

Uses

Vervain has a long history in herbal medicine and was cultivated in medieval gardens. It is also valued as a nectar source for insects and is sometimes grown as an ornamental or medicinal herb.