Final answer:
The flower of Pi Kappa Phi fraternity is not clearly referenced in the provided resources, and it seems that it is not as widely recognized as other Greek organization symbols. For accurate information, consulting official fraternity materials or inquiring directly with the fraternity would be necessary.
Step-by-step explanation:
The flower of Pi Kappa Phi fraternity does not appear to be widely recognized or formally documented in the same way that other Greek organizations might have official flowers associated with them. Fraternities often have symbols, including flowers, that hold special significance, but without a clear, documented reference to the specific flower of Pi Kappa Phi, any answer would be speculative. While there are various traditions within Greek life, including the giving of ceremonial items like a purple fillet upon initiation, the actual flower representing Pi Kappa Phi isn’t mentioned in the provided resources. Therefore, it is important to note that information about the fraternity's symbol in the form of a flower could be obtained from the organization’s official materials or through direct inquiry with the fraternity itself.