Personally, I love the idea of adding the provenance of the plant. Sometimes, it can make a great deal of difference. For example, some years ago, there were two variations of Grey Pearl. One was the Huntington - Liggett variation which had yellow petal bases. The other was the Greenmantle variation which had no yellow at all, the petal bases were stark white. Both were Grey Pearl, without a doubt, but the petal bases were completely different and it actually caused the overall flower color to appear slightly different.

Your Minutifolia types are another where the source really makes a difference. The American type seems seed sterile from all that I've read. The Mexican type sets seed, as you've seen.

The issue would be there may be many multiple sources for the rose. To be able to archive the source of each nursery's material would require separate page for the same source, of each variety. If there are six separate sources of Grandmother's Hat, there would need to be six Grandmother's Hat pages, one for each initial source. Then, the individual nurseries would have to link Grandmother's Hat in their inventory listing to the correct Grandmother's Hat page or the information is erroneous. It's already difficult for some to link the right rose to the right page when there are multiple roses sharing the same name. That issue pops up fairly frequently. There are MANY roses which share the same names, with more appearing every day. Imagine the confusion and mistakes when there are multiple, virtually identical pages for many roses with the only difference being where that line originated.

Adding the necessary multiple pages for each initial source of each name will increase the size of the database considerably, increasing the cost of serving it and potentially increasing the errors in uploading rose lists significantly. I still think the best solution is for each nursery to list their initial sources in their catalogs or lists, as Vintage has in their printed catalog for years.