Species Evaluations & Rationales - Ferns and Fern Allies

Species occurrence on National Forest System units as portrayed by these tables is based on limited information available to evaluators at the time of preparation of species evaluations. Because these evaluations were intended to be sketches and not exhaustive, and because distribution information for many species is inadequate, the accuracy of these location tables cannot be ensured. Therefore, users must assume the responsibility of verifying that this information is accurate for individual forests.

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Recommendation: R2 Sensitive Species
The current Regional Forester sensitive ferns and fern allies and their evaluations are on the "Sensitive Species List" page.
Recommendation: Not R2 Sensitive Species, But Should Be Considered For Other Emphasis Species Lists
Common maidenhair
Adiantum capillus-veneris
Evaluation #1 | #2 | #3 Rationale
Forked spleenwort
Asplenium septentrionale
Evaluation #1 | #2 | #3 Rationale
Maidenhair spleenwort
Asplenium trichomanes
Evaluation #1 | #2 Rationale
Brightgreen spleenwort
Asplenium trichomanes-ramosum
Evaluation #1 | #2 Rationale
Alpine ladyfern
Athyrium americanum
Evaluation #1 | #2 Rationale
Common ladyfern
Athyrium filix-femina
Evaluation #1 | #2 Rationale
Common moonwort
Botrychium lunaria
Evaluation #1 | #2 Rationale
Mingan moonwort
Botrychium minganense (B. lunaria ssp minganense, B. lunaria var minganense
Evaluation #1 | #2 Rationale
Leathery grapefern
Botrychium multifidum
Evaluation Rationale
Pale botrychium
Botrychium pallidum
Evaluation Rationale
Rattlesnake fern
Botrychium virginianum (B. virginianus ssp. europaeus)
Evaluation #1 | #2 | #3 Rationale
Fragile rockbrake
Cryptogramma stelleri
Evaluation #1 | #2 Rationale
Spinulos woodfern
Dryopteris carthusiana (D. spinulosa)
Evaluation Rationale
Spreading woodfern
Dryopteris expansa
Evaluation #1 | #2 Rationale
Dwarf scouringrush
Equisetum scirpoides
Evaluation #1 | #2 Rationale
Woodland horsetail
Equisetum sylvaticum
Evaluation #1 | #2 Rationale
Western oakfern
Gymnocarpium dryopteris (Dryopteris disjuncta)
Evaluation #1 | #2 Rationale
Stiff clubmoss
Lycopodium annotinum
Evaluation Rationale
Sensitive fern
Onoclea sensibilis
Evaluation #1 | #2 | #3 Rationale
Northern adderstongue
Ophioglossum pusillum
Evaluation Rationale
Brewer's cliffbrake
Pellaea breweri
Evaluation Rationale
Gastony's cliffbrake
Pellaea gastonyi
Evaluation #1 | #2 Rationale
Smooth cliffbrake
Pellaea glabella ssp simplex (P. glabella var simplex, P. suksdorfiana)
Evaluation #1 | #2 Rationale
Wright's cliffbrake
Pellaea wrightiana (P. ternifolia var wrightiana)
Evaluation Rationale
Rocky Mountain polypody
Polypodium saximontanum
Evaluation #1 | #2 Rationale
Northern hollyfern
Polystichum lonchitis
Evaluation Rationale
Bluntleaf spikemoss
Selaginella mutica
Evaluation #1 | #2 Rationale
Underwood's spikemoss
Selaginella underwoodii
Evaluation #1 | #2 Rationale
Eastern marsh fern
Thelypteris palustris
Evaluation #1 | #2 Rationale
New Mexico cliff fern
Woodsia neomexicana
Evaluation Rationale
Recommendation: Not R2 Sensitive Species and Not of Concern
Northern maidenhair
Adiantum pedatum
Evaluation Rationale
Reflected grapefern
Botrychium echo
Evaluation Rationale
Variegated scouringrush
Equisetum variegatum (E. variegatum var variegatum, Hippochaete variegata)
Evaluation #1 | #2 | #3 Rationale
Tree groundpine
Lycopodium dendroideum
Evaluation Rationale
Purple cliffbrake
Pellaea atropurpurea
Evaluation #1 | #2 | #3 Rationale
Western polypody
Polypodium hesperium
Evaluation #1 | #2 Rationale
Northern selaginella
Selaginella rupestris
Evaluation #1 | #2 | #3 Rationale
Insufficient Information Available to Make a Recommendation
Aleutian maidenhair
Adiantum aleuticum (A. pedatum ssp. calderi)
Evaluation #1 | #2 Rationale
Scalloped moonwort
Botrychium crenulatum
Evaluation Rationale
Western moonwort
Botrychium hesperium
Evaluation #1 | #2 Rationale
Lanceleaf grapefern
Botrychium lanceolatum var. lanceolatum (Botrychium lanceolatum ssp lanceolatum)
Evaluation Rationale
Northern moonwort
Botrychium pinnatum (B. boreale ssp obtusilobum)
Evaluation #1 | #2 Rationale
Little grapefern
Botrychium simplex
Evaluation #1 | #2 Rationale
Mountain bladderfern
Cystopteris montana
Evaluation Rationale
Water horsetail
Equisetum fluviatile
Evaluation #1 | #2 Rationale
Spiny-spore quillwort
Isoetes tenella (I. setacea ssp. muricata, I. echinospora, I. echinospora ssp. muricata, I. muricata)
Evaluation Rationale
Stiff clubmoss
Lycopodium dubium (L. annotinum, L. annotinum var. pungens)
Evaluation Rationale
Watson's spikemoss
Selaginella watsonii
Evaluation Rationale