I've found some more recent information (2011) about P. miyabeanum in ITIS, stating that it's a synonym of P. nudicaule subsp. nudicaule.
http://www.itis.gov/servlet/Si...
We don't have an entry for that one, so I'll create the entry and move your photos there. That will preserve the differences in color and height you mention.
As for the Campanula, there have been no changes in the status of the two entries, so some other member must have proposed that your image be moved from one entry to the other. I'll move it back to C. rapunculus.
