Epipetric
Encyclopedia
An epipetric plant, is one that is found growing on rocks. Many ferns
Fern
A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants...

 fall into this category of plant habitat, including Asplenium (spleenworts). Epipetric plants are called Lithophytes.
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