Thank you for repeating what others before you have already said. I already said Belladonna is a poisonous plant, but its not an exact reference to the real life flower. First of all, the real life Deadly Nightshade flowers don’t looke anything like Belladonna. Secondly, only Belladonna’s berry projectiles reference the plant.
Also, please, put more effort into your ‘evidence’ next time beyond ‘From myths or whatever’ That just shows you don’t really care, and doesn’t actually serve anything to back up your claims.