I think the word "cultivar" in the loose sense should cover it. After all, it's just short for "cultivated variety", so any variety that is cultivated, whether it be species or hybrid, could be called that.

"Clone" means pretty much the same thing, i.e. a genetically homogeneous population (or individual), distinct from any other. However I think that term would be more likely to confuse the average person, who might associate it with either mad scientists or cancer.

"Variety" is probably the most easily understood, and although it's okay for casual use, when you're talking about plant taxonomy then it takes on a very specific meaning. Same with "form".

Thanks, I'll start saying I have xx varieties of bromeliads.

WL, I just say I have "X" number of species and and an "X" number of hybrids, forms, varities all lumped together. To tell you the truth, in all this excitement I kinda lost track myself. (my apologies to Harry Callahan)

I only have about 170 varieties. Although if I followed the latest registry trends I could count each one of the seedlings from my crosses...