Within Passions Fruit They Will Be Found

Riddle: Within passion’s fruit they will be found, and more of them in the pomegranate’s crown. Rowed they are within an apple’s core, yet other fruits have them more. And though the nectarine has but one, still, this is all just in fun. Playing hide and seek¬ a children’s game. Finding out each player is just the same.
Answer: Seeds