How do some fallen leaves get stuck into the ground by their stems?

stem end heavier one thing second thing worms try to pull bigger things underground

According to The Morton Arboretum's Plant Clinic Manager, it’s a fairly unusual phenomenon. The leaves of some trees are heavy and pointed, so if there is no wind and the soil is moist, they can stick upright! If you have other questions, you can stop in, call, or email our Plant Clinic for answers: https://www.mortonarb.org/trees-plants/tree-and-plant-advice/plant-clinic

The earth reclaiming what she gave to the leaves.

Gravity, physics, nature.