Can we drink honey from any flower picked by bees?

No, because honey made of poisonous flowers is not drinkable.

However, if honey accidentally collects toxic flower sources, bees will have a lot of abnormal symptoms such as death or crawling all over the ground, larval death, stinging and so on. Bees will die a lot after collecting toxic nectar, and basically they can't collect honey. In addition, the honey shaken by severely poisoned bees must be destroyed, which is the professional ethics of beekeeping production, otherwise it will touch the law. In addition, although there are poisonous plant flower sources in nature, honey has the corresponding ability in the evolution of tens of millions of years, and it will not die if it is okay. Besides, there is a difference between bees and humans. Poisonous honey is the first thing that bees can transmit to humans, and very few will endanger people's food safety.