Biennial wormwood, whose botanical name is artemisia biennis, is a species of sagebrush most likely native to Northwestern North America.
An annual or biennial herb, it grows up to 2 meters tall and produces a single erect stem that is green to reddish in color.
The leaves are up to 13 cm long, lacy, and divided into thin, long-toothed spear-shaped segments.
The flowers are densely stalked, with the leaves scattered in clusters of flower heads.
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