lithophyte

A plant that grows on rocks.

A coral with a hard skeleton.

Any one of the polyps whose substance is stony or hard, as corals and sea-fans. The older naturalists classed them with plants, whence the name.

In phytogeography, any plant which grows upon the surface of rocks or stones, aerial or submerged, with or without the presence of humus: sometimes opposed to chasmophyte (which see).

A hard, or stony, plantlike organism, as the gorgonians, corals, and corallines, esp. those gorgonians having a calcareous axis. All the lithophytes except the corallines are animals.

Any plant that lives grows on rocks, obtaining nourishment from rain and the atmosphere.

Any organism, such as a coral, resembling a stony plant.

plant that grows on rocks or stony soil and derives nourishment from the atmosphere