Artemisia ludoviciana aka White Sagebrush

Artemisia ludoviciana, also known as silver wormwood, western mugwort, Louisiana wormwood, white sagebrush, lobed cud-weed, prairie sage, and gray sagewort, is a North American species of flowering plant in the daisy family Asteraceae. Ludoviciana is the Latinized version of the word Louisiana. This herbaceous perennial forms clumps of lance-shaped, usually coarsely toothed leaves that are vividly white when young. The plant grows to heights between 0.33–1 metre (1.1–3.3 ft) and has stems and foliage covered in woolly gray or white hairs. It produces small, yellowish flowerheads that are insignificant. Native to North America, Artemisia ludoviciana is widespread across most of the United States, Canada, and Mexico. It is commonly cultivated as an ornamental plant, but its rhizomatous nature allows it to spread aggressively in certain climates and gardens.