Hi Lynn.
The pic I gave you in the first link (photo by Melissa-Gale), ID's it as S anglicum Suzie Q, and that same picture is used in the Native Son Nursery link (Melissa-Gale/Native Son) along with a second picture tagged by Native Son.
At the top left of the Native son site, they list it as Sedum Susie Q, also known as Suzie Q English stonecrop. That said, UMMM
I dunno
It seems to require a bit more research I do believe. I will poke around a bit and see what I might stumble upon.
I'll be back...