Trees and plants are food and flower factories which function in SILENCE and give us SWEETNESS and FRAGRANCE, and they work for others (not for themselves).
This is not helping Ireneus. Plants and trees use flowers to attract pollinating insects so they can produce seed to propagate themselves. If what you say is true there would be no poisonous plants.
We've learnt not to eat berries, leaves and fungi that harm us by trial and error which must have involved watching loved ones die horribly. Teaching Disney world doesn't help people cope with the real world