I have seedlings from Gote in Sweden as humilis, I think and they seem identical to what I bought locally as flavissima but a friend took a picture of my flavissima to Rodionenko in Russia and he said it looked like bloudowii to him, or perhaps a hybrid of it, so I'm not really sure. In any case none of these little yellows is proving vigorous or free-flowering. Still alive after a few years but not increasing or really thriving, and no seed.