There is a very nice shrub called a Snowball Tree.
As a child I believed that it had poisonous fumes at night so you had to be careful not to fall asleep under it.
A childhood belief about plants

others believed things like this
- When I was a child i used to believe that if i did not fall asleep an elf would come for me Anon
- I believed that the pictures on my nighties came alive at night and played in my room while i was asleep!!Anon
- I used to think that when my arm would fall asleep that it was raining inside my armAnon
- when i was a kid, i used to think that if i didn't fall asleep, morning wouldn't comeAnon
- Whwn I was about 6 I used to think that if a crow bit you you would fall asleep for 100 years!— Lisa
- When I was five, I believed God was big as a tree, a tree being the biggest thing I could convieve of.
— Chris