My contribution to the topic of species vs. cultivar, are montana and sieboldiana the same species or neither one a species, capital or lower case and on and on... is this: Just reading about it makes my head ache! To cure the headache, I can always go outside and look at my beautiful 'Elegans' and my even more beautiful montana 'Aureomarginata'. Correct label or not, if it's good enough for Mark Zilis, it's good enough for me!