QO97-01, an early-midseason dormant tetraploid, 23" high, 5" bloom. Parentage: (H. fulva 'Europa' X unknown yellow tetraploid). Photo by: Nick Chase.

Used in hybridizing, to bring the vigor of the triploid species into tetraploid plants. Could not set a pod on it in 1997, but pollen readily sets pods on tets.