Many thanks Zuzu.
'Hybrida' is a very common rose here in Sweden. I grow it myself, but was a bit surprised when I found the name 'Sämling' for it, as I have never seen that name here, nor can I recall having seeing that name used in our neighboring country Denmark, from which 'Hybrida' originates.
Searching for the misspelled Rosa helenae 'Sämling' however reveals quite a few more references than my initial search for (Rosa heleniae 'Sämling'), which basically didn't return any results at all, except our own database here. So far all results for 'Sämling' that I looked at appears to be German, so I guess it might be a local name, which just happens to be the same as the German word for seedling.
Quite interesting anyway.
Thanks again!