Cleome serrulata, commonly known as Rocky Mountain beeplant, pink beeweed, or stinking clover, is an annual wildflower native to much of western and central North America. It typically reaches heights of 1 to 4 feet, featuring slender, branching stems and palmately compound leaves with three narrow leaflets that give it a light, graceful form. The plant produces showy clusters of pink to lavender flowers from early summer through fall, each flower characterized by long, protruding stamens that create a delicate, brush-like appearance. These blooms are highly attractive to bees, butterflies, and other pollinators, making the species a key contributor to pollinator diversity in its native habitats. Cleome serrulata thrives in full sun and well-drained soils, often colonizing open plains, prairies, and disturbed sites such as roadsides or abandoned fields. The species enriches soil fertility through its association with nitrogen-fixing bacteria, which makes it an important component of prairie restoration efforts. Combining resilience, beauty, and ecological function, Cleome serrulata remains both a symbol of the North American grasslands and a valuable species for native plant landscaping and pollinator conservation.