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ROCK BRAKE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Chiefly lithophytic or epiphytic fern of North America and east Asia
Synonyms:
American wall fern; Polypodium virgianum; rock brake; rock polypody
Classified under:
Hypernyms ("rock brake" is a kind of...):
polypody (any of numerous ferns of the genus Polypodium)
Sense 2
Meaning:
Dwarf deciduous lithophytic ferns
Classified under:
Nouns denoting plants
Hypernyms ("rock brake" is a kind of...):
fern (any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores)
Hyponyms (each of the following is a kind of "rock brake"):
American parsley fern; American rock brake; Cryptogramma acrostichoides (rock-inhabiting fern of northern North America growing in massive tufts and having fronds resembling parsley)
Cryptogramma crispa; European parsley fern; mountain parsley fern (fern of Europe and Asia Minor having short slender rhizome and densely tufted bright green fronds resembling parsley)
Holonyms ("rock brake" is a member of...):
Cryptogramma; genus Cryptogramma (sometimes placed in family Polypodiaceae or Cryptogrammataceae)
Sense 3
Meaning:
Any of several small lithophytic ferns of tropical and warm temperate regions
Synonyms:
cliff-brake; cliff brake; rock brake
Classified under:
Nouns denoting plants
Hypernyms ("rock brake" is a kind of...):
fern (any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores)
Hyponyms (each of the following is a kind of "rock brake"):
coffee fern; Pellaea andromedifolia (evergreen fern of California and Baja California)
Pellaea atropurpurea; purple rock brake (very short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes)
bird's-foot fern; Pellaea mucronata; Pellaea ornithopus (cliff brake of California and Baja California having purple-brown leafstalks)
Holonyms ("rock brake" is a member of...):
genus Pellaea; Pellaea (genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae)
