NOUN | plant | purple rock brake, Pellaea atropurpurea | very short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes |
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Meaning | Very short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes. | |
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Synonym | Pellaea atropurpurea | |
Broader | cliff brake, cliff-brake, rock brake | Any of several small lithophytic ferns of tropical and warm temperate regions |
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