Senecio bigelovii or nodding groundsel or nodding ragwort is a perennial herb found in the Southwestern United States.
The plant can grow up to tall. The leaves are up to long. Blooming from July to September, the yellow flower heads are wide.
S. amplectens and S. neowebsteri can appear similar.
Native to the Colorado Plateau region of the United States, the species inhabits moist soil in grassy areas and forests.