1. Plural of bitterbrush; shrubs of the genus Purshia, native to western North America, with small leaves and yellow flowers, often used for livestock forage and erosion control.
Usage: botanical term; primarily used in western United States contexts

Examples

• The ranchers planted bitterbrushes to prevent soil erosion on the hillside.
• Bitterbrushes are an important food source for deer and elk in the Great Basin.
• The landscape was dotted with low-growing bitterbrushes adapted to the arid climate.
• Wildlife managers encourage the growth of bitterbrushes in restoration projects.
• These bitterbrushes bloom with bright yellow flowers in spring.