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Definition of Rock brake
1. Noun. Any of several small lithophytic ferns of tropical and warm temperate regions.
Exact synonyms: Cliff Brake, Cliff-brake
Generic synonyms: Fern
Group relationships: Genus Pellaea, Pellaea
Specialized synonyms: Coffee Fern, Pellaea Andromedifolia, Pellaea Atropurpurea, Purple Rock Brake, Bird's-foot Fern, Pellaea Mucronata, Pellaea Ornithopus
Generic synonyms: Fern
Group relationships: Genus Pellaea, Pellaea
Specialized synonyms: Coffee Fern, Pellaea Andromedifolia, Pellaea Atropurpurea, Purple Rock Brake, Bird's-foot Fern, Pellaea Mucronata, Pellaea Ornithopus
2. Noun. Dwarf deciduous lithophytic ferns.
Generic synonyms: Fern
Group relationships: Cryptogramma, Genus Cryptogramma
Specialized synonyms: American Parsley Fern, American Rock Brake, Cryptogramma Acrostichoides, Cryptogramma Crispa, European Parsley Fern, Mountain Parsley Fern
Group relationships: Cryptogramma, Genus Cryptogramma
Specialized synonyms: American Parsley Fern, American Rock Brake, Cryptogramma Acrostichoides, Cryptogramma Crispa, European Parsley Fern, Mountain Parsley Fern
3. Noun. Chiefly lithophytic or epiphytic fern of North America and east Asia.