The others need more info, how tall are they, how wide across is the bloom, early or late bloom, rebloom, fragrance and height also, and how long you have had them ect. With all of that info, it gives a place to start. Also who gave them to you-did they have a favorite nursery they ordered from ect, did they always order cheap older things or spend money on newer pricey things ect. There about 90K registered, but only a couple thousand probably in viable circulation. You can't find most of those 90K if your life depended on it. If it is a pass along plant from years and years back, may be one no longer commonly found and that can make it hard to ID also.