Cytisus scoparius, commonly known as Scotch broom or common broom, is a flowering plant in the family Fabaceae. It is native to western and central Europe, but it has been introduced to many other parts of the world, including North America, Australia, and New Zealand, where it is often considered an invasive species.
Scotch broom is a deciduous shrub that typically grows to about 1 to 3 meters (3 to 10 feet) in height, although it can sometimes reach up to 5 meters (16 feet) tall. It has slender green stems with small, simple leaves that are typically arranged alternately along the stems. The bright yellow flowers are pea-like and bloom from late spring to early summer, often covering the plant in a profusion of color. Hardy in zones 5-8.
 
The Scotch Broom is not sold or shipped to Washington State.