Calflora, a 501c3 non-profit
Distribution by County   8938    
Harmonia hallii  (D. D. Keck) B. G. Baldwin
Hall's harmonia
Harmonia hallii is an annual herb that is native to California, and endemic (limited) to California.
also called Madia hallii
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
Record Count by County

Colusa: 50 Lake: 179 Sonoma: 1
Glenn: 1 Napa: 19 Yolo: 1

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 05/29/2024).