Complex sentence: Perhaps the most familiar subspecies of woolly meadowfoam is "californica", not because it is the one most often seen (it is very inconspicuous), but because this taxon has been the focus of a significant conflict.
Split into simpler sentences: Perhaps the most familiar subspecies of woolly meadowfoam is "californica". Not because it is the one most often seen (it is very inconspicuous), but because this taxon has been the focus of a significant conflict.