My Piperia elegans seem to have more of a white flower than the green flower P. elongata in our area! I have only one location for P.elongata. However I have many location/observations of P.elegans. It’s interesting that I have now seen photos of P. elegans with the high density of white flowers. I am not familiar with that high density of white flowers in what I am calling P. elegans. The P.elongata pop. is very different with very green flowers.