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Organism
  Plantae
      Tracheophyta
             [Equisetophyta]
             [Pteridophyta]
        Polypodiophytina
            Polypodiopsida
                   [Cyatheopsida]
                   [Equisetopsida]
                   [Filicopsida]
                   [Gleicheniopsida]
                   [Hymenophyllopsida]
                   [Marattiopsida]
                   [Marsileopsida]
                   [Matoniopsida]
                   [Osmundopsida]
                   [Psilotopsida]
                   [Pteridopsida]
                   [Salviniopsida]
                   [Sphenopsida]
              Polypodiidae
                     [Dennstaedtiidae]
                     [Marsileidae]
                     [Plagiogyriidae]
                     [Pterididae]
                    Polypodiales
                           [Aspleniales]
                           [Athyriales]
                           [Blechnales]
                           [Dennstaedtiales]
                           [Filicales]
                           [Lindsaeales]
                           [Lonchitidales]
                           [Monachosorales]
                           [Negripteridales]
                           [Parkeriales]
                           [Platyzomatales]
                           [Pteridales]
                           [Saccolomatales]
                           [Thelypteridales]
                      Aspleniineae
                            Woodsiaceae
                                     Woodsia
                                           [Cheilanthopsis]
                                           [Eriosoriopsis]
                                           [Hymenocystis]
                                           [Physematium]
                                           [Preslia]
                                           [Protowoodsia]
                                           [Trichocyclus]
                                           [Woodsiopsis]
                                             Woodsia alpina
                                                   [Acrostichum alpinum]
                                                   [Acrostichum hyperboreum]
                                                   [Ceterach alpinum]
                                                   [Polypodium arvonicum]
                                                   [Polypodium hyperboreum]
                                                   [Trichocyclus hyperboreus]
                                                   [Woodsia alpina subsp. bellii]
                                                   [Woodsia alpina var. bellii]
                                                   [Woodsia bellii]
                                                   [Woodsia glabella var. bellii]
                                                   [Woodsia himalaica]
                                                   [Woodsia hyperborea var. arvonica]
                                                   [Woodsia hyperborea]
                                                   [Woodsia ilvensis subsp. alpina]
                                                   [Woodsia ilvensis subsp. hyperborea]
                                                   [Woodsia ilvensis var. alpina]
                                             Woodsia andersonii
                                                   [Eriosoriopsis andersonii]
                                                   [Gymnogramma andersonii]
                                             Woodsia angolensis
                                                   [Physematium angolensis]
                                             Woodsia appalachiana
                                                   [Woodsia scopulina subsp. appalachiana]
                                                   [Woodsia scopulina var. appalachiana]
                                                   [Woodsiopsis appalachiana]
                                             Woodsia asiatica
                                             Woodsia burgessiana
                                                   [Physematium burgessiana]
                                                   [Woodsia montevidensis var. burgessiana]
                                             Woodsia calcarea
                                                   [Woodsia ilvensis var. calcarea]
                                             Woodsia canescens
                                                   [Physematium canescens]
                                             Woodsia cinnamomea
                                                   [Eriosoriopsis cinnamomea]
                                             Woodsia cochisensis
                                                   [Woodsiopsis cochisensis]
                                             Woodsia cycloloba
                                                   [Eriosoriopsis cycloloba]
                                             Woodsia cystopteroides
                                                   [Woodsiopsis cystopteroides]
                                             Woodsia elongata
                                                   [Cheilanthopsis elongata]
                                                   [Physematium elongatum]
                                             Woodsia fragilis
                                                   [Cystopteris caucasica]
                                                   [Diacalpe fragilis]
                                                   [Dicksonia fragilis]
                                                   [Hymenocystis caucasica]
                                                   [Hymenocystis fragilis]
                                                   [Physematium fragile]
                                                   [Woodsia caucasica]
                                             Woodsia glabella
                                               Woodsia glabella subsp. asplenioides
                                                     [Woodsia asplenioides]
                                               Woodsia glabella subsp. glabella
                                                     [Woodsia alpina var. glabella]
                                                     [Woodsia hyperborea var. glabella]
                                                     [Woodsia lapponica]
                                                     [Woodsia yazawai]
                                               Woodsia glabella subsp. pinnatifida
                                             Woodsia gorovoii
                                             Woodsia guizhouensis
                                                   [Eriosoriopsis guizhouensis]
                                             Woodsia hancockii
                                                   [Woodsia gracillima]
                                                   [Woodsia tsurugisanensis]
                                             Woodsia ilvensis
                                                   [Acrostichum ilvense]
                                                   [Aspidium rufidulum]
                                                   [Athyrium rufidulum]
                                                   [Cincinalis setigera]
                                                   [Lastrea rufidula]
                                                   [Nephrodium rufidulum]
                                                   [Notholaena rufidula]
                                                   [Notholaena setigera]
                                                   [Polypodium ilvense]
                                                   [Polypodium marantae]
                                                   [Woodsia acuminata]
                                                   [Woodsia frigida]
                                                   [Woodsia hyperborea var. rufidula]
                                                   [Woodsia ilvensis subsp. rufidula]
                                                   [Woodsia ilvensis var. acuminata]
                                                   [Woodsia ilvensis var. mangutica]
                                                   [Woodsia paleacea]
                                                   [Woodsia raiana]
                                                   [Woodsia rufidula]
                                                   [Woodsia rupicola]
                                                   [Woodsia uralensis]
                                                   [Woodsia vestita]
                                             Woodsia indusiosa
                                                   [Cheilanthes straminea]
                                                   [Cheilanthopsis indusiosa]
                                                   [Cheilanthopsis straminea]
                                             Woodsia kangdingensis
                                                   [Cheilanthopsis kangdingensis]
                                             Woodsia lanosa
                                                   [Eriosoriopsis lanosa]
                                                   [Woodsia pellaeopsis]
                                             Woodsia macrochlaena
                                                   [Woodsia frondosa]
                                                   [Woodsia japonica]
                                                   [Woodsia sinuata]
                                             Woodsia macrospora
                                             Woodsia manchuriensis
                                                   [Diacalpe manchuriensis]
                                                   [Physematium manchuriensis]
                                                   [Protowoodsia manchuriensis]
                                                   [Woodsia insularis]
                                             Woodsia mexicana
                                                   [Woodsia oregana f. pusilla]
                                                   [Woodsia oregana var. mexicana]
                                                   [Woodsia pusilla var. mexicana]
                                                   [Woodsia pusilla]
                                                   [Woodsiopsis mexicana]
                                             Woodsia microsora
                                             Woodsia mollis
                                                   [Diacalpe guatemalensis]
                                                   [Lastrea bulbosa]
                                                   [Physematium molle]
                                                   [Woodsia guatemalensis]
                                             Woodsia montevidensis
                                                   [Cheilanthes crenata]
                                                   [Diacalpe peruviana]
                                                   [Dicksonia montevidensis]
                                                   [Physematium cumingianum]
                                                   [Physematium incisum]
                                                   [Physematium montividensis]
                                                   [Polypodium flabellatum]
                                                   [Woodsia crenata]
                                                   [Woodsia cumingiana]
                                                   [Woodsia incisa]
                                                   [Woodsia jujuiensis]
                                                   [Woodsia peruviana]
                                             Woodsia neomexicana
                                                   [Woodsiopsis neomexicana]
                                             Woodsia nikkoensis
                                             Woodsia oblonga
                                             Woodsia obtusa
                                               Woodsia obtusa subsp. obtusa
                                                     [Alsophila perriniana]
                                                     [Aspidium obtusum]
                                                     [Cystopteris albescens]
                                                     [Cystopteris obtusa]
                                                     [Cystopteris perriniana]
                                                     [Cystopteris vestita]
                                                     [Physematium obtusum]
                                                     [Physematium perrinianum]
                                                     [Physematium vestitum]
                                                     [Polypodium obtusum]
                                                     [Woodsia obtusa f. darlingtonii]
                                                     [Woodsia obtusa var. darlingtonii]
                                                     [Woodsia perriniana]
                                                     [Woodsiopsis obtusa]
                                               Woodsia obtusa subsp. occidentalis
                                                     [Woodsiopsis obtusa subsp. occidentalis]
                                             Woodsia okamotoi
                                                   [Eriosoriopsis okamotoi]
                                             Woodsia oregana
                                               Woodsia oregana subsp. cathcartiana
                                                     [Woodsia cathcartiana]
                                                     [Woodsia oregana f. cathcartiana]
                                                     [Woodsia oregana f. glandulosa]
                                                     [Woodsia oregana var. cathcartiana]
                                                     [Woodsia pusilla var. cathcartiana]
                                                     [Woodsia scopulina f. cathcartiana]
                                                     [Woodsia scopulina var. cathcartiana]
                                                     [Woodsiopsis oregana subsp. cathcartiana]
                                               Woodsia oregana subsp. oregana
                                                     [Physematium oreganum]
                                                     [Woodsia oregana var. oregana]
                                                     [Woodsiopsis oregana]
                                             Woodsia philippsii
                                                   [Woodsiopsis phillipsii]
                                             Woodsia phillipsii
                                             Woodsia pilosa
                                             Woodsia plummerae
                                                   [Woodsia obtusa var. glandulosa]
                                                   [Woodsia obtusa var. plummerae]
                                                   [Woodsia pusilla var. glandulosa]
                                                   [Woodsiopsis plummerae]
                                             Woodsia polystichoides
                                                   [Physematium polystichoides]
                                                   [Woodsia brandtii]
                                                   [Woodsia polystichoides f. sinuata]
                                                   [Woodsia polystichoides f. veitchii]
                                                   [Woodsia polystichoides var. incisa]
                                                   [Woodsia polystichoides var. nudiuscula]
                                                   [Woodsia polystichoides var. sinuata]
                                                   [Woodsia polystichoides var. veitchii]
                                             Woodsia pseudoilvensis
                                             Woodsia pseudopolystichoides
                                                   [Woodsia ilvensis var. pseudopolystichoides]
                                             Woodsia pubescens
                                                   [Physematium pubescens]
                                             Woodsia pulchella
                                                   [Woodsia glabella subsp. pulchella]
                                                   [Woodsia glabella var. heterophylla]
                                                   [Woodsia glabella var. pinnatifida]
                                                   [Woodsia heterophylla]
                                                   [Woodsia pinnatifida]
                                             Woodsia rosthorniana
                                                   [Eriosoriopsis rosthorniana]
                                                   [Woodsia delavayi]
                                                   [Woodsia jeholensis]
                                                   [Woodsia lanosa var. attenuata]
                                             Woodsia saitoana
                                             Woodsia scopulina
                                               Woodsia scopulina subsp. laurentiana
                                                     [Woodsiopsis scopulina subsp. laurentiana]
                                               Woodsia scopulina subsp. scopulina
                                                     [Physematium scopulinum]
                                                     [Woodsia obtusa var. lyallii]
                                                     [Woodsia oregana var. lyallii]
                                                     [Woodsia scopulina f. nana]
                                                     [Woodsiopsis scopulina]
                                             Woodsia shensiensis
                                             Woodsia sinica
                                             Woodsia subcordata
                                                   [Woodsia commixta]
                                                   [Woodsia eriosora]
                                                   [Woodsia kitadakensis]
                                                   [Woodsia longifolia]
                                                   [Woodsia pilosella]
                                                   [Woodsia subcordata var. kitadakensis]
                                                   [Woodsia subcordata var. longifolia]
                                                   [Woodsia viridis]
                                             Woodsia subintermedia
                                                   [Woodsia conmixta]
                                                   [Woodsia intermedia]
                                                   [Woodsia taishanensis]
                                             Woodsia taigischensis
                                                   [Woodsia ilvensis var. taigischensis]
                                             Woodsia x abbeae
                                                   [Woodsia abbeae]
                                                   [Woodsia confusa]
                                                   [Woodsia oregana var. squammosa]
                                             Woodsia x gracilis
                                                   [Woodsia gracilis]
                                                   [Woodsia ilvensis var. gracilis]
                                             Woodsia x kansana
                                             Woodsia x maxonii
                                             Woodsia x tryonis
                                             † Woodsia bonseri
                              Woodsioideae

Problematic Rooting (48407)
                                             Physematium manchuriense
                                             Physematium mexicanum
                                             Physematium neomexicanum
                                             Physematium phillipsii
                                             Physematium plummerae

Problematic Rooting (48419)
                                               Physematium obtusum subsp. occidentale

Problematic Rooting (48420)
                                               Physematium oreganum subsp. cathcartianum