Sweet Bubby is just another name for the same plant.
Before deodorant was invented, women would tuck one or two of the flowers into their clothing and the flower was called 'sweet bubby'. Here is a link to someone who explains it better than I could.
http://tinaramsey.blogspot.com...
Oh, and may I add...since postage can be rather expensive, if anyone is planning on requesting the 'sweet bubby' seeds for the experiment, you could offer to send a SASBE to JB...