This is actually my dad's belief. My grandma has always kept a garden and when my dad was little, he thought that the hibiscus flowers were actually called hot biscuits!
A childhood belief about plants

others believed things like this
- My husband used to believe that kindergarten was called, "kiddie garden." — wife of mispronouncing guy
- I thought pink wafer biscuits would bite me if I touched them. Absolutely no idea why.Anon
- i would never eat biscuits with currants in because someone told me they were flies.— ahab
- All flowers had exactly five petals and two leaves.— MD Caruso
- I used to believe that flowerbeds were beds for flowers.— Nina Green
- When I was a child I used to belive that fairies were born from the flowers.— fantasy