Evaluation location: Washington, United States
Safflower core developed by Dave Stout, Western Regional Plant Introduction Station, Pullman, WA. 1993. All available field data on accessions were sorted(grouped) by: (country, height, head size, 100 seed weight, spines, flower color, oil, bloom date, branching). The log of the frequency was used if the group was large. Accessions were selected evenly within the sort.