The Liverworts of Mt. Adams Country
The Clubmosses of Mt. Adams Country - (Lycopodiaceae)
Common Clubmoss, Elk-moss, Ground Pine, Running Clubmoss, Running Pine, Stag-moss: Lycopodium clavatum (Synonyms: Lycopodium clavatum var. integrifolium, Lycopodium clavatum var. subremotum) -
Alaskan Clubmoss, Sitka Clubmoss: Diphasiastrum sitchense (Synonyms: Lycopodium sabinifolium var. sitchense, Lycopodium sitchense) -
Hybrid Clubmoss: Diphasiastrum alpinum X Diphasiastrum sitchense (Synonym: Lycopodium alpinum × Lycopodium sitchense)
The Grapeferns and Moonworts of Mt. Adams Country - (Ophioglossaceae)
Aleutian Maidenhair, Five-finger Fern, Northern Maidenhair, Western Maidenhair: Adiantum aleuticum (var. aleuticum) - (Pteridaceae)
The Lady Ferns of Mt. Adams Country - (Dryopteridaceae)
Deer Fern: Blechnum spicant (Synonyms: Blechnum spicant ssp. nipponicum, Blechnum spicant var. pensylvanica, Struthiopteris spicant) - (Blechnaceae)
American Parsley Fern, American Rockbrake: Cryptogramma acrostichoides (Synonyms: Cryptogramma crispa, Cryptogramma crispa var. acrostichoides) - (Pteridaceae) Fronds and stems persistent into the next year at base of plant. Fronds leathery.
Cascade Parsley Fern, Cascade Rockbrake: Cryptogramma cascadensis - (Pteridaceae) Fronds and old stems deciduous in late autumn, not persistent into the next year. Fronds thinner.
Brittle Bladderfern, Fragile Fern, Brittle Fern, Bladder Fern: Cystopteris fragilis (Synonyms: Cystopteris dicieana, Polypodium fragile) - (Dryopteridaceae)
Male Fern: Dryopteris filix-mas (Synonym: Polypodium filix-mas) - (Dryopteridaceae)
Pacific Oak Fern, Western Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris var. disjunctum) - (Dryopteridaceae)
Common Fern, Northern Oak Fern: Gymnocarpium dryopteris (Synonyms: Dryopteris linnaeana, Lastrea dryopteris, Phegopteris dryopteris, Polypodium dryopteris, Thelypteris dryopteris) - (Dryopteridaceae)
Nelson's Pepperwort, Pacific Clover-fern, Water-clover: Marsilea oligospora - (Marsileaceae)
Pepperwort, Clover-fern: Marsilea vestita (Synonyms: Marsilea fournieri, Marsilea mucronata, Marsilea tenuifolia, Marsilea uncinata, Marsilea vestita ssp. tenuifolia, Marsilea vestita ssp. vestita) - (Marsileaceae)
Lace Fern, Lace Lipfern, Lace Lip Fern: Myriopteris gracillima (Synonym: Cheilanthes gracillima) - (Pteridaceae)
Long Beechfern, Narrow Beech Fern, Northern Fern: Phegopteris connectilis (Synonyms: Dryopteris phegopteris, Phegopteris polypodioides, Polypodium connectile, Polypodium phegopteris, Thelypteris phegopteris) - (Thelypteridaceae)
Irregular Polypody: Polypodium amorphum (Synonym: Polypodium montense) - (Polypodiaceae)
Licorice Fern: Polypodium glycyrrhiza (Synonyms: Polypodium aleuticum, Polypodium falcatum, Polypodium occidentale, Polypodium vulgare var. falcatum, Polypodium vulgare var. occidentale) - (Polypodiaceae)
Western Polypody: Polypodium hesperium (Synonyms: Polypodium prolongilobum, Polypodium vulgare var. columbianum, Polypodium vulgare var. hesperium) - (Polypodiaceae)
The Sword Ferns of Mt. Adams Country - (Dryopteridaceae)
Western Brackenfern, Bracken Fern, Northern Bracken Fern: Pteridium aquilinum var. pubescens (Synonym: Pteridium aquilinum var. lanuginosum) - (Dennstaedtiaceae)
Laurentian Cliff Fern: Woodsia scopulina ssp. laurentiana - (Dryopteridaceae)
Mountain Fern, Rocky Mountain Cliff Fern: Woodsia scopulina ssp. scopulina - (Dryopteridaceae)