Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun purple_rock_brake

1 sense of purple rock brake

Sense 1
purple rock brake, Pellaea atropurpurea -- (very short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes)
       => cliff brake, cliff-brake, rock brake -- (any of several small lithophytic ferns of tropical and warm temperate regions)