When I was young, we could find what we called “shy fern” around the car park. As the slope got concreted, the ferns disappeared. Every time I’d see a small green fern I’d touch them in the hope that the leaves would fold, but usually I was disappointed.
I was waiting outside for mm to drive up and saw a small cluster. Without any expectations, I touched the leaves with my shoe and was pleasantly surprised that they folded immediately. I thought they’d gone from the area.
Googling tells me that the plant is called mimosa pudica, commonly called shy plant, sensitive plant or sleepy plant. The leaves fold inwards when disturbed to protect themselves and re-open a few minutes later. I hope this plant survives and spreads back to the car park. It seems to be doing okay growing in gaps in the concrete.