The result using a parent with unbalanced chromosomes as the pollen parent.
The only plant I've managed doing that and only the third plant I've grown
to bloom of the sort - after ten years of trying. It's fascinating that
those four grandparents would sort things out to give this. Doesn't show in
the photo, but to the naked eye the beard looks mauve. I'd rather call it
gray, but.... The fall color being repeated in the pale pinkish lilac
standards via the network of veins was a nice touch. It appears to have
set two pods.
Texas Zone 7b, USA