Artemisia, a genus of herbs and shrubs. The artemisias are found in most areas of the Northern Hemisphere. The plants are often referred to as "wormwoods." They grow from less than one foot (30 cm) to about 12 feet (3.6 m) in height, depending on the species. The flowers are usually white or yellow, and many species have a silvery coating on their leaves.
Some of the more familiar artemisias are sagebrush, tarragon, mugwort, dusty miller, and common wormwood. The common wormwood is a source of an essential oil used to flavor absinthe, a liqueur.
The common wormwood is Artemisia absinthium; mugwort is A. vulgaris; dusty miller is A. stelleriana. All belong to the family Compositae.