Cosmos atrosanguineus
Reichjke de kuypeurs (Sat, 22 Sep 2012 17:39:22 PDT)

Dennis, I was in Jalisco, Mexico last year, and saw myriad Cosmos
atrosanguineus, some with ripe seed. I said nothing when I read the
posts concerning this plant. I suppose in Northern climes, this
raises a stir when a clone produces seed.
Unless you've seen the plant in the wild, you can only conject the
impossibilities attributed to this genus and species. Tissue culture
has done a disservice to this plant, as they look nothing like those
in the wild. No wonder at all they are sterile, producing no seed.
Quite honestly, I 'm not sure why this plant stirs that much interest,
but..... it is NOT extinct, fertile in the wild, and perhaps in
certain situations outside it's habitat.
Rick K