Hi Annie.
It was changed here in our database some years back, but we do show it 'Also sold as' in the entries under different synonym names.
Many of the nurseries are starting to catch up with the name changes in these and many other plants.
Same with the sedum changes, sempervivum changes.
I see for P. chrysanthum a date of 1995:
http://www.catalogueoflife.org...
Hope this was helpful?
