Verbena, (Lippia citriodora) and odor-proof wood, dogwood, native to tropical South America, in the 17th century, the Spanish explorers will transplant it to Europe warm zone.Leaves small shrubs, up 1.5 ~ 3m, leaves opposite or verticillate, lanceolate, has a strong aroma, flowering 6 ~ 8 months.

The leaves are usually opposite, simple, and in many species hairy, often densely so. The flowers are small, with five petals, and borne in dense spikes. Typically some shade of blue, they may also be white, pink, or purple, especially in cultivars.