||Iris nelsonii, a presumed natural occurring hybrid between Iris fulva, Iris giganticaereula, some also include Iris brevicaulis as a potentil contributor that has given rise to this species ranking. All are found in the swamps south of Abbeville, Louisiana. The large, drooping, bright violet-red flowers have broad segments and are very attractive. This stable hybrid does not seems to spread as rapidly as the parents do. This means you can place it in tighter areas for quite some time, say 3-5 years.