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