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Plant Biodiversity Conservatory and Research Core

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SPECIAL COLLECTION:
Ferns & Fern Allies

The ferns are a group of vascular plants that differ from the seed plants in that they reproduce sexually via spores rather than seeds. Based upon recent molecular data the ferns are now also considered to include the horsetails (Equisetum) & whisk ferns (Psilotum).

  • February 7, 2017 - The higher order classification of ferns has been reorganized to correspond with:
    • PPG I (2016), A community-derived classification for extant lycophytes and ferns. Jnl of Sytematics Evolution, 54: 563–603. doi:10.1111/jse.12229

  • Polypodiopsida
    • Equisetidae (horsetails)
      • Equisetales
    • Ophioglossidae
      • Psilotales
      • Ophioglossales
    • Marattiidae
      • Marratiales
    • Polypodiidae (leptosporangiates)
      • Osmundales
      • Hymenophyllales
      • Gleicheniales
      • Schizaeales
      • Salviniales
      • Cyatheales
      • Polypodiales
Greenhouse Locator Map:

data regenerated on Tue, 08 Jul 2025 02:13:54 -0400

125 Accessions:

Actiniopteris semiflabellata Angiopteris lygodiifolia Asplenium bulbiferum Asplenium nidus Azolla caroliniana Equisetum pratense Huperzia obtusifolia Marsilea quadrifolia Microsorum steerei Ophioglossum pendulum Phlegmariurus phlegmarioides Regnellidium diphyllum Selaginella willdenowii Tectaria gemmifera

Number in parentheses references locator map icons

  • {1} Lygodium circinnatum - Lygodiaceae
  • {2} Lygodium japonicum - Lygodiaceae
  • {3} Actiniopteris semiflabellata - Pteridaceae
  • {3} Selaginella lepidophylla - Resurrection Plant, Rose of Jericho - Selaginellaceae
  • {4} Deparia conilii 'Ryu Ou' - Athyriaceae
  • {5} Onoclea sensibilis - Sensitive Fern - Onocleaceae W/C
  • {5} Osmunda regalis - Royal Fern - Osmundaceae W/C
  • {6} Deparia conilii - Athyriaceae
  • {6} Doodia caudata - Small Rasp Fern - Blechnaceae
  • {6} Dryopteris filix-mas 'Crispatissima' - Dwarf crinkled male fern - Dryopteridaceae
  • {6} Gymnocarpium dryopteris - Cystopteridaceae
  • {6} Pellaea rotundifolia - Button Fern, Cliff Brake - Pteridaceae
  • {7} Azolla caroliniana - Mosquito Plant - Salviniaceae
  • {8} Equisetum bogotense - Andean Horsetail, Cola de caballo - Equisetaceae
  • {8} Equisetum bogotense - Andean Horsetail - Equisetaceae
  • {8} Equisetum bogotense - Andean Horsetail - Equisetaceae W/C
  • {8} Equisetum bogotense - Andean Horsetail - Equisetaceae W/C
  • {8} Equisetum hyemale - Common Scouring Rush - Equisetaceae
  • {8} Equisetum laevigatum - Smooth Horsetail - Equisetaceae
  • {8} Equisetum pratense - Meadow Horsetail - Equisetaceae W/C
  • {8} Equisetum ramosissimum - Branched Horsetail - Equisetaceae
  • {8} Equisetum scirpoides - Dwarf Scouring Rush - Equisetaceae
  • {8} Equisetum telmateia ssp. braunii - Great Horsetail - Equisetaceae W/C
  • {8} Equisetum telmateia ssp. braunii - Equisetaceae W/C
  • {8} Equisetum telmateia ssp. telmateia - Giant Horsetail - Equisetaceae
  • {8} Equisetum variegatum - Equisetaceae W/C
  • {8} Equisetum variegatum 'Large Form' - Large Form - Equisetaceae
  • {8} Equisetum variegatum ssp. alaskanum - Equisetaceae
  • {8} Equisetum variegatum var. majus - Equisetaceae W/C
  • {8} Equisetum variegatum var. wilsoni - Equisetaceae W/C
  • {8} Equisetum x font-queri - Equisetaceae W/C
  • {9} Isoetes sp. - Quillwort - Isoetaceae
  • {9} Regnellidium diphyllum - Clover two-leaf - Marsileaceae
  • {10} Equisetum x moorei - Equisetaceae W/C
  • {10} Selaginella cf. peruviana - Selaginellaceae
  • {10} Selaginella cf. wrightii - Wright's spike-moss - Selaginellaceae
  • {10} Selaginella watsonii - Alpine spike-moss, Watson's spike-moss - Selaginellaceae
  • {11} Araiostegia pulchra - Davalliaceae
  • {11} Huperzia obtusifolia - Tassel Fern - Lycopodiaceae
  • {11} Hypolepis tenuifolia - Dennstaedtiaceae W/C
  • {11} Microlepia strigosa - Lace Fern - Dennstaedtiaceae
  • {11} Microsorum steerei - Blue Strap Fern - Polypodiaceae
  • {11} Ophioglossum pendulum - Ophioglossaceae
  • {11} Phlegmariurus goebelii - Lycopodiaceae
  • {11} Phlegmariurus phlegmaria - Lycopodiaceae
  • {11} Phlegmariurus phlegmarioides - Lycopodiaceae
  • {11} Phlegmariurus squarrosus - Siam Fern Form - Lycopodiaceae
  • {11} Phlegmariurus squarrosus var. hippuroides - Lycopodiaceae
  • {12} Acrostichum aureum - Leather Fern, Coastal Leather Fern - Pteridaceae
  • {12} Campyloneurum phyllitidis - Long Strap Fern - Polypodiaceae
  • {12} Coniogramme intermedia - Bamboo Fern - Pteridaceae
  • {12} Marsilea drummondii - Nardoo - Marsileaceae
  • {12} Marsilea quadrifolia - European Water Clover - Marsileaceae
  • {12} Microgramma lycopodioides - clubmoss snakefern - Polypodiaceae
  • {12} Microsorum sp. - Polypodiaceae
  • {12} Microsorum unidentified - Polypodiaceae
  • {12} Phlebodium aureum - Rabbit's Foot fern, Hare's Foot fern - Polypodiaceae
  • {13} Davallia fejeensis - Rabbit's Foot Fern - Davalliaceae
  • {13} Doryopteris concolor - Hand Fern - Pteridaceae
  • {13} Ophioglossum petiolatum - Stalked Adder's Tongue - Ophioglossaceae
  • {13} Psilotum nudum - Whisk Fern, Skeleton Fork Fern - Psilotaceae
  • {13} Psilotum nudum - miniature form - Psilotaceae
  • {13} Psilotum nudum 'Bunryu Zan' - Appendageless Psilotum - Psilotaceae
  • {14} Angiopteris lygodiifolia - Mules Foot Fern - Marattiaceae
  • {14} Colysis hemionitidea - Polypodiaceae
  • {14} Microsorum punctatum "Grandiceps" - Climbing Bird's Nest Fern - Polypodiaceae
  • {14} Scyphularia pentaphylla - Black Caterpillar Fern - Davalliaceae
  • {15} Adiantum cv. "Ocean spray" - 'Ocean Spray' Maidenhair Fern - Pteridaceae
  • {15} Adiantum cv. (variegated) - Pteridaceae
  • {15} Adiantum hispidulum cv. - Australian Maidenhair, Rough Maidenhair - Pteridaceae
  • {15} Adiantum raddianum cv. - Maidenhair fern - Pteridaceae
  • {15} Anemia tomentosa - Anemiaceae
  • {15} Araiostegia hymenophylloides - Davalliaceae
  • {15} Asplenium sp. - Aspleniaceae
  • {15} Hemionitis arifolia - Heart Fern - Pteridaceae
  • {15} Lemmaphyllum microphyllum - Polypodiaceae
  • {15} Neolepisorus ovatus - syn Neolepisorus phyllomanes - Polypodiaceae
  • {15} Nephrolepis cordifolia 'Plumosa' - Fishbone Fern - Nephrolepidaceae
  • {15} Polypodiodes formosana - Grub Fern, Caterpillar Fern - Polypodiaceae
  • {15} Pteris cretica - Cretan Brake, Table Fern - Pteridaceae
  • {15} Pyrrosia polydactylis - Felt Fern - Polypodiaceae
  • {16} Aglaomorpha speciosa - Polypodiaceae
  • {16} Asplenium bulbiferum - Hens and Chickens Fern - Aspleniaceae
  • {16} Blechnum gracile - Blechnaceae W/C
  • {16} Drynaria bonii - Polypodiaceae
  • {16} Hypolepis dicksonioides - Cloud Ground Fern - Dennstaedtiaceae W/C
  • {16} Pellaea viridis - Green Cliffbrake - Pteridaceae
  • {16} Platycerium grande - Polypodiaceae
  • {16} Platycerium veitchii - Polypodiaceae
  • {16} Pseudodrynaria coronans - Santa Rosa Fern - Polypodiaceae
  • {16} Pteris ensiformis - slender brake - Pteridaceae
  • {16} Rumohra adiantiformis - Leatherleaf Fern - Dryopteridaceae
  • {16} Tectaria gemmifera - Snail Fern - Tectariaceae
  • {16} Tectaria zeylanica - Tectariaceae
  • {17} Microgramma nitida - Polypodiaceae
  • {17} Pyrrosia lingua - Tongue Fern, Japanese Felt Fern - Polypodiaceae
  • {18} Asplenium nidus - Birds Nest Fern, Pakpak-lauin - Aspleniaceae
  • {18} Cyrtomium falcatum - Japanese Holly Fern - Dryopteridaceae
  • {18} Platycerium coronarium - Polypodiaceae
  • {19} Lecanopteris luzonensis - Ant Fern - Polypodiaceae
  • {20} Goniophlebium subauriculatum - Polypodiaceae
  • {20} Platycerium alcicorne - narrow leaved Madagascan form - Polypodiaceae W/C
  • {21} Ceratopteris pteridoides - Water Sprite - Pteridaceae
  • {21} Salvinia auriculata - Eared Watermoss - Salviniaceae
  • {22} Equisetum diffusum - Himalayan Horsetail - Equisetaceae
  • {22} Equisetum giganteum - Equisetaceae W/C
  • {22} Equisetum myriochaetum - Equisetaceae
  • {23} Aglaomorpha meyeniana - Bear's Paw Fern - Polypodiaceae
  • {23} Dennstaedtia bipinnata - Bipinnate Cuplet Fern - Dennstaedtiaceae
  • {23} Nephrolepis obliterata 'Kimberly Queen' - Kimberly Queen Fern - Nephrolepidaceae
  • {24} Dennstaedtia cicutaria - Dennstaedtiaceae
  • {24} Microsorum scandens - Fragrant Fern - Polypodiaceae
  • {24} Phlegmariurus squarrosus - Bali, Indonesia form - Lycopodiaceae
  • {24} Platycerium alcicorne - Polypodiaceae W/C
  • {24} Platycerium bifurcatum - Polypodiaceae
  • {24} Selaginella anceps - Selaginellaceae
  • {24} Selaginella pallescens aurea - Golden Sweat Plant - Selaginellaceae
  • {24} Selaginella willdenowii - Wildenow's Spike Fern - Selaginellaceae
  • {24} Stenochlaena palustris - Blechnaceae
  • {24} Stenochlaena tenuifolia - Giant Vine Fern - Blechnaceae
  • {0} Platycerium andinum - American Staghorn - Polypodiaceae
  • {0} Platycerium madagascariense - Polypodiaceae
  • {0} Platycerium quadridichotomum - Polypodiaceae
  • {0} Vittaria lineata - Shoestring Fern - Pteridaceae
  • {0} Salvinia molesta - Giant Salvinia - Salviniaceae

W/C = Wild Collected
= Currently Flowering
= Image(s) Available
= map available for this accession
= voucher(s) on file at CONN for this accession
= accession added within past 90 days
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