Adenostoma fasciculatum, commonly known as chamise, is a shrub native to the western United States, particularly in California. It typically grows in dry, rocky soils and can reach heights of 1 to 3 meters. The plant features narrow, needle-like leaves and produces small, white flowers that bloom in the spring. Chamise is an important component of the California chaparral ecosystem, providing habitat and food for various wildlife species. Its deep root system helps prevent soil erosion, and it is well-adapted to survive in fire-prone environments, often resprouting after wildfires.