Thanks for the reminder @catullus. Some stuff came up IRL and I wasn't sure I would have time to properly handle the clean-up needed for these Campanuloideae taxon swaps. But I'll try to kick them off after the holiday and monitor the outcome.

After some delay, I’m starting the work of committing various taxon changes for North American species in the subfamily Campanuloideae to reflect Morin 2020 and match POWO. It is possible that some of these changes will cause ID disagreements (e.g. a genus-level ID of Campanula, which previously would have supported a more precise ID might now be treated as disagreeing with species-level IDs such as Palustricodon aparinoides or Smithiastrum prenanthoides.

It is not feasible to construct atlases for each species within Campanula to enable a split of the genus. Therefore, I will endeavor to review these observations following the renaming of these taxa.