Jim McKenney wrote David, I think the ismene in your photo is not 'Sulfur Queen'. You may be right -- the plant was sold to me as Sulphur Queen. I did notice the 5-fold symmetry, but these were its first flowers. I think its later flowers had 6-fold symmetry. I have had other plants whose first flowering was different from later flowers. (In particular a Homeria raised from seed, whose first two flowers had 4- and 5-fold symmetry, but all of whose later flowers had 6-fold symmetry.) Anyway, its color argues against it being a clone of of I. narcissifolia. A hybrid of, perhaps, but that's what Sulphur Queen is. Currently I am growing a hybrid or clone of I. narcissifolia, and it is white except for the green midstripe. I have collected and am growing its offspring, and am anxious to see how like the parents the offspring are. By the way -- which is the correct spelling: Sulphur of Sulfur? David E.