We acquired this hybrid from Evette and Barry Fisher many years ago. It is a hummingbird hybrid growing in there collection. It was originally thought to be a cross of Tillandsia crocata  X recurvifolia v. subsecundifolia.  But now I believe it is a cross of T. humilis and T. recurvifolia var. subsecundifolia.Regardless, Iit has lovely yellow petals which have a slight fragrance.