Complex sentence: Cycad sago is used for many of the same purposes as palm sago, though strictly speaking the difference between sago and tapioca is that sago comes from the palm pith and tapioca from Cassava.
Split into simpler sentences: Cycad sago is used for many of the same purposes as palm sago. Though strictly speaking the difference between sago and tapioca is that sago comes from the palm pith and tapioca from Cassava.