These checklists are dynamically generated from specimen records in the CPNWH Database. They should not be considered complete county floras. Although our database holdings are extensive, there are still many gaps at the county level. You can help us fill the gaps by collecting and donating specimens to an herbarium in our region. County maps are not available for Alaska, British Columbia, or Yukon Territory due to a lack of specimens attributed to a county, borough, or district.

There is no limit to the number of counties you can select. However, a list with many counties will take time to generate and may not fit nicely on a printed page.