Which plant was an inspiration for inventing a hook-and-loop fastener?

Sticky burs or hitchhikers, not always easy to see , but annoying.

I eat burdock root regularly here in Japan (gobou).

a brilliant and practical invention that we use it today

Maestro1313, We call them bobby buttons in our part of Wales

Tom, how is it prepared? I'm curious to try it.

They are a prolific weed here. Every animal ends up with them in its coat. It will hitchhike on pants legs, too.