Scotch broom, Cytisus scoparius, in a field.

Brooms are upright shrubs that produce predominantly yellow flowers in spring. Most species also generate new leaves in the spring but often lose them during hot, dry summer months, creating a whisk-broom appearance. Shown here is Scotch broom, <i>Cytisus scoparius</i>.; Oregon Credit: Eric Coombs, Oregon Dept of Agriculture, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>
Credit: Eric Coombs, Oregon Dept of Agriculture, Bugwood.org
Licensed under a Creative Commons Attribution 3.0 License