| crataegus monogyna | | USA: California, Humboldt, Hwy 36, 6.8 air km W of Bridgeville | | 453040959 |
| crataegus monogyna | | USA: California, Sonoma, Ragle Ranch, W of Sebastopol, 40 m NW of NW corner of parking lot | | 453040965 |
| crataegus monogyna | | USA: California, Humboldt, Hwy 36, 6.8 air km W of Bridgeville | | 453041298 |
| crataegus monogyna | | USA: California, Sonoma, Ragle Ranch, W of Sebastopol, 40 m NW of NW corner of parking lot. | | 453041301 |
| crataegus monogyna | | USA: California, Humboldt, Hwy 36, 6.8 air km W of Bridgeville | | 453041721 |
| crataegus monogyna | | USA: California, Sonoma, Ragle Ranch, W of Sebastopol, 40 m NW of NW corner of parking lot | | 453041727 |
| crataegus monogyna | | USA: California, Humboldt, Hwy 36, 6.8 air km W of Bridgeville | | 511447390 |