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Distribution by County   9575    
Hemizonella minima  (A. Gray) A. Gray
Opposite leaved tarweed
Hemizonella minima is an annual herb that is native to California, and also found elsewhere in western North America.
also called Madia minima
Record Count by County

Alpine: 5 Lake: 12 Placer: 27 Siskiyou: 80
Amador: 8 Lassen: 21 Plumas: 46 Solano: 1
Butte: 25 Los Angeles: 25 Riverside: 9 Sonoma: 8
Calaveras: 6 Madera: 8 San Benito: 10 Stanislaus: 2
Colusa: 4 Mariposa: 33 San Bernardino: 18 Tehama: 10
Del Norte: 4 Mendocino: 16 San Diego: 3 Trinity: 53
El Dorado: 64 Modoc: 14 San Mateo: 1 Tulare: 31
Fresno: 65 Mono: 6 Santa Barbara: 2 Tuolumne: 41
Glenn: 10 Monterey: 1 Santa Clara: 4 Ventura: 21
Humboldt: 39 Napa: 2 Shasta: 40
Kern: 21 Nevada: 29 Sierra: 15

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/12/2025).