Here's some more information about this rose:
https://www.helpmefind.com/ros...
It's listed as Samling in our rose database because the names Sämling, Semiplena, and Hybrida are used by equal numbers of vendors and plant owners, with no clear preference for any of the three. In these cases, we usually assign preference to the exhibition name, but this rose does not have an exhibition name. It was added to the database as Sämling (or Samling, because we don't use foreign diacritical marks in our database) because that's how it was originally proposed for inclusion. The other names are included in the entry for search purposes.
R. helenae, incidentally, is not an accepted botanical name. It's a misspelling of heleniae.