Mein Gott, Uli............ Just minutes ago I was perusing Diana Chapman's TELOS RARE BULBS CATALOG and noticed her listing of IRF and her notation: (In the past, listed as I. uniflorum "Rolf Fiedler" - Code # IPH - 005 - OE). That sounds pretty exact, to me! I am currently waiting on tenterhooks for Diana to publish her 2003 catalog. My order from TELOS last year was so good, if the horticultural world awarded Oscars for quality merchandise, she would have won, hands down. GOOD LUCK! (I was going to say 'gooden tag' but am not sure of the spelling). SKYLARK