| 单词 | fern |
| 释义 | fern (once / 723 pages) n WORD FAMILY fern: fernless, fernlike, ferns, ferny USAGE EXAMPLESShortly after the escape, Chapman joined a private social network app for neighbors, and soon photos were being posted of Fern spottings across town. Los Angeles Times(Dec 30, 2016) The brightly colored female bird named Fern was spotted Tuesday in the rafters of a Yorba Linda auto repair shop. Washington Times(Dec 30, 2016) Winter plants thriving in the park now include ferns, snowberry and wild roses. Seattle Times(Dec 25, 2016) n any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores Hypo|Hyper pecopteris Carboniferous fossil fern characterized by a regular arrangement of the leaflets resembling a comb film fern, filmy fernany fern of the genus Hymenophyllum growing in tropical humid regions and having translucent leaves bristle fern, filmy fernany fern of the genus Trichomanes having large pinnatifid often translucent fronds; most are epiphytic on tree branches and twigs or terrestrial on mossy banks flowering fern, osmundany fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters Leptopteris superba, Prince-of-Wales feather, Prince-of-Wales fern, Prince-of-Wales plume, Todea superba, crape fernNew Zealand with pinnate fronds and a densely woolly stalks; sometimes included in genus Todea Todea barbara, crepe fern, king fernfern of rain forests of tropical Australia and New Zealand and South Africa Schizaea pusilla, curly grass, curly grass fernrare small fern of northeastern North America having numerous slender spiraling fronds and forming dense tufts Anemia adiantifolia, pine fernfern of Florida and West Indies and Central America with rhizome densely clad in grown hairs climbing fernany of several ferns of the genus Lygodium that climb by twining Mohria caffrorum, scented fernsweetly scented African fern with narrow bipinnate fronds aquatic fern, water fernferns that grow in water adder's tongue, adder's tongue fernferns with fertile spikes shaped like a snake's tongue grape ferna fern of the genus Botrychium having a fertile frond bearing small grapelike clusters of spore cases Helminthostachys zeylanica, flowering fernAustralasian fern with clusters of sporangia on stems of fertile fronds Diplopterygium longissimum, giant scrambling fernlarge scrambling fern forming large patches to 18 feet high; Pacific region and China Gleichenia flabellata, Sticherus flabellatus, fan fern, umbrella fernlarge Australasian fern with fanlike repeatedly forked fronds; sometimes placed in genus Gleichenia polypodyany of numerous ferns of the genus Polypodium Aglaomorpha meyeniana, bear's-paw fernepiphytic fern with large fronds; Taiwan and Philippines strap fernfern with long narrow strap-shaped leaves Drynaria rigidula, basket ferngiant epiphytic or lithophytic fern; Asia to Polynesia and Australia lecanopterisany of several bizarre ferns of the genus Lecanopteris having swollen hollow rhizomes that provide homes for symbiotic ants Microgramma-piloselloides, snake polypodyepiphytic ferns with long rhizomes; tropical America Microsorium punctatum, climbing bird's nest ferntropical Africa to Australasia and Polynesia Phlebodium aureum, Polypodium aureum, golden polypody, rabbit's-foot fern, serpent ferntropical American fern with brown scaly rhizomes cultivated for its large deeply lobed deep bluish-green fronds; sometimes placed in genus Polypodium staghorn fernany of various tropical ferns of the genus Platycerium having large flat lobed fronds often resembling the antlers of a stag Cyclophorus lingua, Pyrrosia lingua, felt fern, tongue ferneast Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus Solanopteris bifrons, potato fernsmall epiphytic fern of South America with tuberous swellings along rhizomes Vittaria lineata, grass fern, ribbon fernepiphytic fern found in lowland forests of tropical America spleenwortany of various chiefly rock-inhabiting ferns of the genus Asplenium Asplenium nidus, bird's nest ferntropical Old World or Australian epiphytic fern frequently forming tufts in tree crotches Asplenium scolopendrium, Phyllitis scolopendrium, hart's-tongue, hart's-tongue fernEurasian fern with simple lanceolate fronds Asplenium ceterach, Ceterach officinarum, scale fern, scaly fernsmall European fern with chaffy leathery fronds Asplenium nigripes, Schaffneria nigripes, Scolopendrium nigripesa fern of the genus Schaffneria scolopendriuma fern thought to resemble a millipede hard fernany of several ferns of the genus Blechnum doodia, rasp fernany fern of the genus Doodia having pinnate fronds with sharply dentate pinnae chain ferna fern of the genus Woodwardia having the sori in chainlike rows tree fernany of numerous usually tropical ferns having a thick woody stem or caudex and a crown of large fronds; found especially in Australia and New Zealand; chiefly of the families Cyatheaceae and Marattiaceae but some from Polypodiaceae davalliaany fern of the genus Davallia; having scaly creeping rhizomes Dennstaedtia punctilobula, boulder fern, hay-scented, hay-scented fern, scented fernfern of eastern North America with pale green fronds and an aroma like hay Pteridium aquilinum, bracken, brake, pasture brakelarge coarse fern often several feet high; essentially weed ferns; cosmopolitan Pteridium esculentum, brackenfern of southeastern Asia; not hardy in cold temperate regions Culcita dubia, false brackenresembles Pteridium aquilinum; of Queensland, Australia buckler fern, shield fernany of various ferns of the genera Dryopteris or Polystichum or Lastreopsis having somewhat shield-shaped coverings on the sori wood fern, wood-fern, woodfernany of various ferns of the genus Dryopteris Athyrium filix-femina, lady fernmost widely grown fern of the genus Athyrium for its delicate foliage Athyrium pycnocarpon, Diplazium pycnocarpon, glade fern, narrow-leaved spleenwort, silvery spleenwortNorth American fern with narrow fronds on yellowish leafstalks Cyrtomium aculeatum, Polystichum aculeatum, holly ferntropical Old World fern having glossy fronds suggestive of holly; sometimes placed in genus Polystichum bladder fernany fern of the genus Cystopteris characterized by a hooded indusium or bladderlike membrane covering the sori Athyrium thelypteroides, Deparia acrostichoides, silvery spleenwortfern with elongate silvery outgrowths enclosing the developing spores Gymnocarpium dryopteris, Thelypteris dryopteris, oak fernbright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere Gymnocarpium robertianum, limestone fern, northern oak fernyellow-green fern of rocky areas of northern hemisphere Matteuccia struthiopteris, Onoclea struthiopteris, Pteretis struthiopteris, fiddlehead, ostrich fern, shuttlecock ferntall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes Olfersia cervina, Polybotria cervina, Polybotrya cervina, hart's-tongue, hart's-tongue ferntropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya Onoclea sensibilis, bead fern, sensitive fernbeautiful spreading fern of eastern North America and eastern Asia naturalized in western Europe; pinnately divided fronds show a slight tendency to fold when touched; pinnules enclose groups of sori in beadlike lobes Christmas fern, Polystichum acrostichoides, canker brake, dagger fern, evergreen wood fernNorth American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds holly fernany of various ferns of the genus Polystichum having fronds with texture and gloss like holly Polystichum adiantiformis, Rumohra adiantiformis, leather fern, leatherleaf fern, ten-day fernwidely distributed fern of tropical southern hemisphere having leathery pinnatifid fronds Tectaria cicutaria, button fernJamaican fern having round buttonlike bulbils Indian button fern, Tectaria macrodontafern of tropical Asia having round buttonlike bulbils woodsiaany fern of the genus Woodsia Oleandra mollis, Oleandra neriiformis, oleander ferntropical fern having leathery fronds resembling oleander; found from Asia to Polynesia sword fernany of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed Acrostichum aureum, golden fern, leather fernstout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides maidenhair, maidenhair fernany of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds Anogramma leptophylla, Jersey fern, annual fernsmall short-lived fern of Central and South America lip fern, lipfernany of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semiarid temperate or tropical regions Cheilanthes gracillima, lace fernsmall tufted fern of northwestern America Coniogramme japonica, bamboo fernfast-growing sturdy Japanese fern; cultivated for their attractive broad dark-green pinnate fronds rock brakedwarf deciduous lithophytic ferns Doryopteris pedata, hand ferntropical American fern with coarsely lobed to palmatifid fronds cliff brake, cliff-brake, rock brakeany of several small lithophytic ferns of tropical and warm temperate regions Pellaea rotundifolia, button fernfern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets Pityrogramma argentea, silver fernfern of southern tropical Africa having fronds with white undersides Pityrogramma calomelanos, silver ferntropical American fern having fronds with white undersides Pityrogramma calomelanos aureoflava, golden ferntropical American fern having fronds with light golden undersides Pityrogramma chrysophylla, gold fernfern of West Indies and South America having fronds with bright golden-yellow undersides brakeany of various ferns of the genus Pteris having pinnately compound leaves and including several popular houseplants Pteris creticacultivated in many varieties as houseplants Pteris multifida, spider brake, spider fernAsiatic fern introduced in America Pteris serrulata, ribbon fern, spider fernfern of North Africa and Azores and Canary Islands Marattia salicina, potato fernlarge Australasian evergreen fern with an edible rhizome sometimes used as a vegetable by indigenous people Dryopteris thelypteris, Thelypteris palustris, marsh fernfern having pinnatifid fronds and growing in wet places; cosmopolitan in north temperate regions christellaany of several tropical ferns of the genus Christella having thin brittle fronds Dryopteris oreopteris, Oreopteris limbosperma, mountain ferncommon European mountain fern having fragrant lemon or balsam scented fronds Dryopteris noveboracensis, New York fern, Parathelypteris novae-boracensisslender shield fern of moist woods of eastern North America; sometimes placed in genus Dryopteris Massachusetts fern, Parathelypteris simulata, Thelypteris simulatadelicate feathery shield fern of the eastern United States; sometimes placed in genus Thelypteris beech fernany fern of the genus Phegopteris having deeply cut triangular fronds Trichomanes boschianum, hare's-foot bristle ferna variety of bristle fern Killarney fern, Trichomanes speciosumlarge stout fern of extreme western Europe Trichomanes reniforme, kidney fernlarge fern of New Zealand having kidney-shaped fronds French bracken, Osmunda regalis, ditch fern, king fern, royal fern, royal osmundlarge deeply rooted fern of worldwide distribution with upright bipinnate compound tufted fronds Osmunda clatonia, interrupted fernNorth American fern having tall erect pinnate fronds and a few sporogenous pinnae at or near the center of the fertile fronds Osmunda cinnamonea, cinnamon fern, fiddlehead, fiddlehead fernNew World fern having woolly cinnamon-colored spore-bearing fronds in early spring later surrounded by green fronds; the early uncurling fronds are edible Hartford fern, Lygodium palmatum, creeping ferndelicate fern of the eastern United States having a twining stem and palmately-lobed sterile fronds and forked fertile fronds Lygodium microphyllum, climbing maidenhair, climbing maidenhair fern, snake ferntropical fern widespread in Old World; naturalized in Jamaica and Florida clover fern, pepperwortany of several water ferns of the genus Marsilea having four leaflets Pilularia globulifera, pillwortEuropean water fern found around margins of bodies of water or in wet acid soil having small globose sporocarps Regnellidium diphyllum, regnellidiumsmall latex-containing aquatic fern of southern Brazil Salvinia auriculata, Salvinia rotundifolia, floating-mossfree-floating aquatic ferns Azolla caroliniana, Carolina pond fern, floating fern, mosquito fernsmall free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe Ophioglossum pendulum, ribbon fernepiphytic fern with straplike usually twisted fronds of tropical Asia and Polynesia and America Botrychium lunaria, common moonwort, moonwortof America and Eurasia and Australia Botrychium matricariifolium, daisy-leaved grape fern, daisyleaf grape fernof North America and Eurasia Botrychium multifidum, leathery grape fernEuropean fern with leathery and sparsely hairy fronds Botrychium virginianum, rattlesnake fernAmerican fern whose clustered sporangia resemble a snake's rattle Ceratopteris pteridioides, floating fern, water spriteaquatic fern of tropical America often used in aquariums Ceratopteris thalictroides, floating fernpantropical aquatic fern Polypodium glycyrrhiza, licorice fernfern having rootstock of a sweetish flavor Polypodium polypodioides, gray polypody, grey polypody, resurrection fernfern growing on rocks or tree trunks and having fronds greyish and scurfy below; Americas and South Africa Polypodium scouleri, coast polypody, leatherleaf, leathery polypodystiff leathery-leaved fern of western North America having ovate fronds parted to the midrib American wall fern, Polypodium virgianum, rock brake, rock polypodychiefly lithophytic or epiphytic fern of North America and east Asia Polypodium vulgare, adder's fern, common polypody, golden maidenhair, golden polypody, sweet fern, wall fernmat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia Florida strap fern, cow-tongue fern, hart's-tongue ferncommon epiphytic or sometimes terrestrial fern having pale yellow-green strap-shaped leaves; Florida to West Indies and Mexico and south to Uruguay Campyloneurum augustifolium, Central American strap fern, narrow-leaved strap fernfern with shorter and narrower leaves than Florida strap fern; Florida to West Indies and Mexico and south to Argentina Platycerium andinum, South American staghornfern of Peru and Bolivia Platycerium alcicorne, Platycerium bifurcatum, common staghorn fern, elkhorn ferncommonly cultivated fern of Australia and southeastern Asia and Polynesia Asplenium adiantum-nigrum, black spleenwortspleenwort of Europe and Africa and Asia having pinnate fronds and yielding an astringent Asplenium platyneuron, Scott's Spleenwort, ebony spleenwortcommon North American fern with polished black stripes black-stem spleenwort, black-stemmed spleenwort, little ebony spleenwortfern of tropical America: from southern United States to West Indies and Mexico to Brazil Asplenium rhizophyllum, Camptosorus rhizophyllus, walking fern, walking leafferns having lanceolate fronds that root at the tip Asplenium trichomanes, maidenhair spleenwortsmall rock-inhabiting fern of northern temperate zone and Hawaii with pinnate fronds Asplenium viride, green spleenworta small fern with slim green fronds; widely distributed in cool parts of northern hemisphere Asplenium montanum, mountain spleenworta spleenwort of eastern North America Asplenium ruta-muraria, wall rue, wall rue spleenwortsmall delicate spleenwort found on a steep slope (as a wall or cliff) of Eurasia and North America Asplenium bradleyi, Bradley's spleenworta spleenwort of eastern to southern United States Asplenium pinnatifidum, lobed spleenworta spleenwort of eastern and southern United States Asplenium billotii, lanceolate spleenworta spleenwort of western Europe Blechnum spicant, deer fernfern with erect fronds of Europe and western North America; often cultivated for deer browse Virginia chain fern, Woodwardia virginicaNorth American fern Cyathea medullaris, black tree fern, sago fern, silver tree ferna showy tree fern of New Zealand and Australia having a crown of pinnated fronds with whitish undersides hare's-foot ferneither of two ferns of the genus Davallia having a soft grey hairy rootstock Davalia bullata, Davalia bullata mariesii, Davallia Mariesii, ball fern, squirrel's-foot fernfeathery fern of tropical Asia and Malaysia Dicksonia antarctica, soft tree fernof Australia and Tasmania; often cultivated; hardy in cool climates Cibotium barometz, Scythian lambAsiatic tree fern having dense matted hairs sometimes used as a styptic Thyrsopteris elegans, thyrsopterisa terrestrial tree fern of South America Dryopteris dilatata, broad buckler-fernEuropean shield fern Dryopteris fragrans, fragrant cliff fern, fragrant shield fern, fragrant wood fernfern or northern Eurasia and North America having fragrant fronds Dryopteris goldiana, Goldie's fern, Goldie's shield fern, goldie's wood fernNorth American fern with a blackish lustrous stipe Dryopteris filix-mas, male fernfern of North America and Europe whose rhizomes and stalks yield an oleoresin used to expel tapeworms Dryopteris marginalis, evergreen wood fern, leatherleaf wood fern, marginal wood fernNorth American fern with evergreen fronds Dryopteris oreades, mountain male ferna fern of the genus Dryopteris Alpine lady fern, Athyrium distentifoliuma lady fern with deeply cut leaf segments; found in the Rocky Mountains Cystopteris fragilis, brittle bladder fern, brittle fern, fragile ferndelicate fern widely distributed in North America and European having thin pinnatifid fronds with brittle stems Cystopteris montana, mountain bladder fernfern of rocky mountainous areas of hemisphere Cystopteris bulbifera, berry fern, bulblet bladder fern, bulblet fernNorth American fern often bearing bulbils on the leaflets Braun's holly fern, Polystichum braunii, prickly shield fernNorth American fern whose more or less evergreen leathery fronds are covered with pale brown chafflike scales Polystichum lonchitis, northern holly fernevergreen European fern widely cultivated Polystichum scopulinum, western holly fernNorth American fern Polystichum setiferum, soft shield fernEuropean shield fern cultivated in many varieties Woodsia ilvensis, fragrant woodsia, oblong woodsia, rusty woodsiaa common rock-inhabiting fern of northern temperate regions having rusty-brown stipes and lanceolate pinnate fronds Alpine woodsia, Woodsia alpina, flower-cup fern, northern woodsiaslender fern of northern North America with shining chestnut-colored stipes and bipinnate fronds with usually distinct marginal sori Woodsia glabella, smooth woodsiarock-inhabiting fern of Arctic and subarctic Europe to eastern Asia Boston fern, Nephrolepis exaltata, Nephrolepis exaltata bostoniensisa sword fern with arching or drooping pinnate fronds; a popular houseplant Nephrolepis pectinata, basket fern, toothed sword ferntropical American fern cultivated for its finely divided greyish-green foliage; West Indies and southern Mexico to Peru and Brazil Adiantum capillus-veneris, Venus maidenhair, Venus'-hair fern, Venushair, common maidenhair, southern maidenhairdelicate maidenhair fern with slender shining black leaf stalks; cosmopolitan Adiantum pedatum, American maidenhair fern, five-fingered maidenhair fernhardy palmately branched North American fern with divergent recurved branches borne on lustrous dark reddish stipes Adiantum bellum, Bermuda maidenhair, Bermuda maidenhair ferndelicate endemic Bermudian fern with creeping rootstock Adiantum tenerum, brittle maidenhair, brittle maidenhair ferntropical American fern with broad pinnae; widely cultivated Alabama lip fern, Cheilanthes alabamensis, smooth lip fernsoutheastern United States to northern Mexico and Jamaica Cheilanthes lanosa, hairy lip fern, wooly lip fernsmall North American evergreen fern whose stipes and lower frond surfaces are densely wooly Cheilanthes eatonii, southwestern lip fernlip fern of Texas to Oklahoma and Colorado and Arizona and Mexico having tall erect tufted fronds American parsley fern, American rock brake, Cryptogramma acrostichoidesrock-inhabiting fern of northern North America growing in massive tufts and having fronds resembling parsley Cryptogramma crispa, European parsley fern, mountain parsley fernfern of Europe and Asia Minor having short slender rhizome and densely tufted bright green fronds resembling parsley Pellaea andromedifolia, coffee fernevergreen fern of California and Baja California Pellaea atropurpurea, purple rock brakevery short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes Pellaea mucronata, Pellaea ornithopus, bird's-foot ferncliff brake of California and Baja California having purple-brown leafstalks Angiopteris evecta, angiopteris, giant fernhighly variable species of very large primitive ferns of the Pacific tropical areas with high rainfall Dryopteris thelypteris pubescens, Thelypteris palustris pubescens, meadow fern, snuffbox fernfern of northeastern North America Dryopteris hexagonoptera, Phegopteris hexagonoptera, Thelypteris hexagonoptera, broad beech fern, southern beech fernbeech fern of North American woodlands having straw-colored stripes Dryopteris phegopteris, Phegopteris connectilis, Thelypteris phegopteris, long beech fern, narrow beech fern, northern beech fernbeech fern of North America and Eurasia nonflowering plant, pteridophyte plants having vascular tissue and reproducing by spores |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。