There isn't one single plant name that applies to all plants that grow on bare rocks or stones. This type of growth is called lithophytic, and there are many different species of plants that can thrive in these harsh environments.

Here are some examples:

* Lichens: These are a composite organism made up of a fungus and an alga. They are often the first organisms to colonize bare rock, breaking it down and creating soil for other plants.

* Mosses: These small, non-vascular plants can also grow on rocks, absorbing moisture and nutrients directly from the air and rain.

* Ferns: Some ferns, like the rock fern, can grow in crevices and on the sides of rocks.

* Succulents: Many succulent plants, such as cacti and sedums, can survive in dry, rocky environments.

* Alpine plants: Plants that grow in high-altitude environments often have adaptations that allow them to survive on rocky slopes.

To be more specific, you'd need to provide more information about the location, climate, and appearance of the plant you're interested in.