Calflora, a 501c3 non-profit
Distribution by County   10739    
Erigeron robustior  (Cronquist) G. L. Nesom
Willamette fleabane
Erigeron robustior is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 4.3 (limited distribution).
Record Count by County

Humboldt: 20 Plumas: 3 Siskiyou: 1 Trinity: 5

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 12/07/2023).