Sherry - is this blooming now? If so, measure every bloom stalk and then take an average. This along with bloom time and the distictive pattern (The Falls have a small "stitched" edge while the standards have a much wider stitched area. These facts (plus the flower form) could narrow the search timeframe and give you/us a better chance of coming up with a clue. The other thing is when did you get this?
