I'm sure that would be based on good intentions, but I personally would not trust it. I have run into the lost tag problem many times with my own plants, but its just too hard to be accurate, even when you are familiar with the plant and especially if there is not a very short list of known prior ID's to choose from. IMHO. There are exceptions, but those are based on something unique about the variety, like Fame Monstrose. Even with 'Oddity', there are several forms similar, such as 'Grigg's Surprise' and another known as 'Calcaerum Monstrose' and I've heard of more but not seen pictures.