Verbena officinalis, the common vervain or common verbena, is a perennial herb native to Europe. It grows up to a metre/yard high, with an upright habitus. The lobed leaves are toothed, the delicate spikes hold mauve flowers.
A sweet and delicate musk-like odour is produced by the seed coat. The essential oil obtained from the plant is used as a food flavouring and in perfumery...