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Wintergreen Quillwort,
Isoetes hyemalis
Megaspores on knife blade.
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Rattlesnake Fern,
Botrypus virginianus
Sterile blade reflexed to almost horizontal, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Rattlesnake Fern,
Botrypus virginianus
Sterile blade thin-textured, bright green, distinctly lacy-cut, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Rattlesnake Fern,
Botrypus virginianus
Blade not circinate [that is, not coiled in a "fiddlehead" as many ferns are], per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Rattlesnake Fern,
Botrypus virginianus
The common stalk, below where sterile blade & sporophore diverge, 4-8" long, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Rattlesnake Fern,
Botrypus virginianus
Fertile stalk 20-40cm long, arising from base of blade, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Cutleaf Grapefern,
Sceptridium dissectum
Sterile blade segments entire to obscurely serrulate or crenulate, per Weakley's Flora (2012).
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Cutleaf Grapefern,
Sceptridium dissectum
Fertile and sterile stalks joined far below the base of the leaf blade, per Weakley's Flora (2012).
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Southern Grapefern,
Sceptridium biternatum
Sterile blade mostly 2-pinnate, the segments sharply serrulate, per Weakley's Flora.
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Southern Grapefern,
Sceptridium biternatum
Blade composed of a sterile portion & an erect fertile ...panicle, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Winter Grapefern,
Sceptridium lunarioides
Blade prostrate; broadly triangular; segments small, roundish or fan-shaped, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Slender Adder's-tongue,
Ophioglossum nudicaule
Sterile blade elliptic-lanceolate, apiculate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Slender Adder's-tongue,
Ophioglossum nudicaule
Fertile stalk 2-6x as long as blade portion, arising at or near ground level, per The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014).
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Longstem Adder's-tongue,
Ophioglossum petiolatum
Lance-shaped blade abruptly expands from a short stalk and tapers upward, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Southern Adder's-tongue,
Ophioglossum pycnostichum
Blade is oval, rounded at top with broad, abruptly tapering base, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Engelmann's Adder's-tongue,
Ophioglossum engelmannii
The veins of sterile blades form 2 sets of areoles: fine bounded by coarse, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Interrupted Fern,
Claytosmunda claytoniana
Fronds 1-5' long. Fertile blades interrupted by 2-5 pairs of fertile pinnae, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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American Royal Fern,
Osmunda spectabilis
Fertile blade similar to sterile but with sporangia-bearing pinnules at tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Japanese Climbing Fern,
Lygodium japonicum
Long-triangular pinnately divided segments of sterile pinnae on lower blade, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Japanese Climbing Fern,
Lygodium japonicum
Fertile pinnae on upper part of blade have more & usually smaller segments, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Dwarf Filmy-fern,
Didymoglossum petersii
Fronds only one cell thick. Long, wiry, wide-spaced hairs along blade edges, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Dwarf Filmy-fern,
Didymoglossum petersii
Leaves elliptic to oblanceolate, simple; petioles nearly as long as blades, per Flora of North America.
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Northern Maidenhair Fern,
Adiantum pedatum
Rachis divides into 2 branches to form a semicircular, fan-shaped blade, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Northern Maidenhair Fern,
Adiantum pedatum
Blades borne on slender erect branched stipes [here resembling small trees], per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Hay-scented Fern,
Sitobolium punctilobulum
Blade widest near the bottom, bipinnate to bipinnate-pinnatifid, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Hay-scented Fern,
Sitobolium punctilobulum
Blades tacky to the touch w glandular hairs covering pinnae, stipe & rachis, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Hay-scented Fern,
Sitobolium punctilobulum
Blades ovate-lanceolate, slightly narrowed at base, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Woolly Lipfern,
Myriopteris tomentosa
The blade's ultimate segments pinched at the base so as to appear beadlike, per Ferns of the Smokies (Evans, 2005).
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Woolly Lipfern,
Myriopteris tomentosa
The stipes are very hairy and scaly, about 3-4" long, shorter than blades, per Vascular Plants of North Carolina.
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Woolly Lipfern,
Myriopteris tomentosa
A woolly-looking species, with a glaucous, pale whitish-gray-green blade, per Vascular Plants of North Carolina.
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Purple Cliffbrake,
Pellaea atropurpurea
Blade leathery with mostly opposite pinnae: upper undivided, lower divided, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Wright's Cliffbrake,
Pellaea wrightiana
Lower blade 2-pinnate, fertile segments with recurved margins, per Flora of North America.
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Copper Fern,
Bommeria hispida
Leaf blades small, broadly 5-sided in outline (pentagonal), per The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014).
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Eastern Bracken,
Pteridium latiusculum
Blade broadly triangular, divided into 3 nearly equal parts, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Eastern Bracken,
Pteridium latiusculum
Blade reflexed almost to the horizontal (parallel to ground), per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Southern Lady Fern,
Athyrium asplenioides
Petioles as long as blade, reddish or light green. Blade widest @ 2nd pinna, per Ferns of the Smokies (Evans, 2005).
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Northern Lady Fern,
Athyrium angustum
Blades broadly lanceolate w pointed tips, widest near or just below middle, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Glade Fern,
Diplaziopsis pycnocarpa
Stipe shorter than blade, stout, slightly scaly especially near base, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Glade Fern,
Diplaziopsis pycnocarpa
Blade lanceolate with long acuminate tip and slightly tapering base, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Japanese Lady Fern,
Deparia petersenii
Blade ovate-lanceolate, abruptly narrowed to an acuminate, pinnatifid apex, per Flora of North America.
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Appalachian Woodsia,
Woodsia appalachiana
Blade oblong to linear, acuminate at apex and narrowed at base, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Blunt-lobed Cliff Fern,
Woodsia obtusa ssp. obtusa
Blade lanceolate, cut into widely spaced pinnae at right angles to rachis, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Lowland Bladder Fern,
Cystopteris protrusa
Blade lanceolate, tips pointed, widest just below middle; ~ dissected, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Bulblet Bladder Fern,
Cystopteris bulbifera
Similar to C. fragilis, but blade much longer and more tapering, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Fragile Fern,
Cystopteris fragilis
Blades lanceolate with pointed tips, widest just below middle, ~ dissected, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Mackay's Bladder Fern,
Cystopteris tenuis
Blade lanceolate, widest at or just below middle, with narrow tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Marginal Woodfern,
Dryopteris marginalis
Blade oblong, ascending and arching, leathery and evergreen, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Evergreen Woodfern,
Dryopteris intermedia
Leaves evergreen, blades appearing more-or-less parallel-sided and minutely glandular-pubescent, per Weakley's Flora (2022).
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Evergreen Woodfern,
Dryopteris intermedia
Evergreen. Blade oval to narrowly triangular, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Mountain Woodfern,
Dryopteris campyloptera
Blade widely ovate, about 2/3 as broad as rachis length, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Crested Woodfern,
Dryopteris cristata
Blade narrow; sides almost parallel (mid to lower pinnae the same length), per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Southern Woodfern,
Dryopteris ludoviciana
Sori round and medial, on pinnae of upper half of fertile blade only, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Southern Woodfern,
Dryopteris ludoviciana
A elliptic-lanceolate blade, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Log Fern,
Dryopteris celsa
Blade oblong, slightly narrowed at base and gradually tapering at tip, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Goldie's Woodfern,
Dryopteris goldieana
Blade mostly oval with parallel sides and abruptly pointed tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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Japanese Holly-fern,
Cyrtomium falcatum
Blade pinnate, 18-35cm long and 8-15cm wide, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
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Northern Beech Fern,
Phegopteris connectilis
Rachis wings absent between the two basal pinna pairs; frond blade longer than wide, per Weakley's Flora (2022).
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Northern Beech Fern,
Phegopteris connectilis
Indument abaxially of moderately to densely set hairs along costae, veins, and blade tissue, per Flora of North America.
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Northern Beech Fern,
Phegopteris connectilis
The blade is more conspicuously hairy on the leaf tissue than that of broad beech fern, per Ferns of the Smokies (Evans, 2005).
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Broad Beech Fern,
Phegopteris hexagonoptera
Blades widely triangular, as wide or wider than long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).