Have you ever wondered if I have feet under my leaves or if my leaves do the “walking” for me?
HOLY $#!T A TALKING BELLOSSOM
…well, Bellossom, I think we can extrapolate from when you were an Oddish. The Pokédex describes Oddish’s feet as actually being “roots” – and, well, presumably you do still need roots to absorb water and nutrients from the soil. They might not look exactly like an Oddish or Gloom’s, but I’d say you probably have some sort of tuber-like structure under there somewhere.