Scotch Broom is a plant native to Eurasia, which has naturalized in much of the western United States. It is a member of the pea family, and grows in clumps up to 3 feet tall. A close relative of English Broom, Scotch Broom (Cytisus scoparius) is the most common of several species of Cytisus to be found in North America.
Scotch broom is an aggressive plant that is native to Europe and Asia but has now become naturalized in North America. Scotch broom is a low-growing, woody perennial that reaches a height of 3–12 inches. It has a dense, twiggy crown and slender, yellowish-green stems.