Distribution of Crataegus monogyna
Click on a square to display records from the Consortium of California Herbaria for that county.
- Marin
- Sacramento
- San Mateo
- Mendocino
- Contra Costa
- Nevada
- Butte
- Napa
- Shasta
- Del Norte
- Siskiyou
- Alameda
- Sonoma
- Humboldt
- Kern
- Monterey
- Santa Cruz