HyperDic: purple_rock_brake

English > 1 sense of the expression purple rock brake:
NOUNplantpurple rock brake, Pellaea atropurpureavery short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes
English > purple rock brake: 1 sense > noun 1, plant
MeaningVery short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes.
SynonymPellaea atropurpurea
Broadercliff brake, cliff-brake, rock brakeAny of several small lithophytic ferns of tropical and warm temperate regions

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