Calflora, a 501c3 non-profit
Distribution by County   8926    
Erigeron maniopotamicus  G. L. Nesom & T. W. Nelson
Mad river fleabane daisy
Erigeron maniopotamicus is a perennial herb that is native to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere)
Record Count by County

Humboldt: 18 Trinity: 4

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/19/2026).