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Organism
  Plantae
      Tracheophyta
             [Equisetophyta]
             [Pteridophyta]
        Polypodiophytina
            Polypodiopsida
                   [Cyatheopsida]
                   [Equisetopsida]
                   [Filicopsida]
                   [Gleicheniopsida]
                   [Hymenophyllopsida]
                   [Marattiopsida]
                   [Marsileopsida]
                   [Matoniopsida]
                   [Osmundopsida]
                   [Psilotopsida]
                   [Pteridopsida]
                   [Salviniopsida]
                   [Sphenopsida]
              Equisetidae
                    Equisetales
                            Equisetaceae
                                     Equisetum
                                           [Allostelites]
                                           [Hippochaete]
                                           [Presla]
                                             Equisetum arvense
                                               Equisetum arvense subsp. arvense
                                                     [Allostelites arvensis]
                                                     [Equisetum alpestre]
                                                     [Equisetum arvense f. agreste]
                                                     [Equisetum arvense f. alpestre]
                                                     [Equisetum arvense f. arcticum]
                                                     [Equisetum arvense f. atratidens]
                                                     [Equisetum arvense f. caespitosum]
                                                     [Equisetum arvense f. campestre]
                                                     [Equisetum arvense f. decumbens]
                                                     [Equisetum arvense f. diffusum]
                                                     [Equisetum arvense f. irriguum]
                                                     [Equisetum arvense f. loennbohmii]
                                                     [Equisetum arvense f. macrostachya]
                                                     [Equisetum arvense f. microstachya]
                                                     [Equisetum arvense f. nanum]
                                                     [Equisetum arvense f. nemorosum]
                                                     [Equisetum arvense f. polystachyon]
                                                     [Equisetum arvense f. proliferum]
                                                     [Equisetum arvense f. pseudoalpestre]
                                                     [Equisetum arvense f. pseudonemorosum]
                                                     [Equisetum arvense f. pseudovarium]
                                                     [Equisetum arvense f. ramulosum]
                                                     [Equisetum arvense f. riparium]
                                                     [Equisetum arvense subsp. alpestre]
                                                     [Equisetum arvense subsp. boreale]
                                                     [Equisetum arvense subsp. ramulosum]
                                                     [Equisetum arvense var. alpestre]
                                                     [Equisetum arvense var. arenicola]
                                                     [Equisetum arvense var. boreale]
                                                     [Equisetum arvense var. campestre]
                                                     [Equisetum arvense var. coaetaneum]
                                                     [Equisetum arvense var. decumbens]
                                                     [Equisetum arvense var. diffusum]
                                                     [Equisetum arvense var. erectum]
                                                     [Equisetum arvense var. frondescens]
                                                     [Equisetum arvense var. granulatum]
                                                     [Equisetum arvense var. nemorosum]
                                                     [Equisetum arvense var. nudum]
                                                     [Equisetum arvense var. polystachyon]
                                                     [Equisetum arvense var. procumbens]
                                                     [Equisetum arvense var. proliferum]
                                                     [Equisetum arvense var. ramulosum]
                                                     [Equisetum arvense var. riparium]
                                                     [Equisetum arvense var. robustum]
                                                     [Equisetum arvense var. triangulare]
                                                     [Equisetum boreale]
                                                     [Equisetum calderi]
                                                     [Equisetum campestre]
                                                     [Equisetum minus]
                                                     [Equisetum nemorosum]
                                                     [Equisetum polycladum]
                                                     [Equisetum saxicola]
                                               Equisetum arvense subsp. diffusum
                                                     [Equisetum diffusum var. paucidentatum]
                                                     [Equisetum diffusum]
                                                     [Equisetum mekongense]
                                                     [Equisetum wallichianum]
                                               Equisetum arvense var. arvense
                                             Equisetum bogotense
                                                   [Equisetum bogotense var. flagelliforme]
                                                   [Equisetum bogotense var. nudum]
                                                   [Equisetum rinihuense]
                                                   [Equisetum stipulaceum]
                                             Equisetum fluviatile
                                                   [Equisetum fluviatile f. attenuatum]
                                                   [Equisetum fluviatile f. limosum]
                                                   [Equisetum fluviatile f. linnaeanum]
                                                   [Equisetum fluviatile f. minus]
                                                   [Equisetum fluviatile f. natans]
                                                   [Equisetum fluviatile f. polystachium]
                                                   [Equisetum fluviatile f. uliginosum]
                                                   [Equisetum fluviatile subsp. limosum]
                                                   [Equisetum fluviatile var. attenuatum]
                                                   [Equisetum fluviatile var. brachycladon]
                                                   [Equisetum fluviatile var. intermedium]
                                                   [Equisetum fluviatile var. leptocladon]
                                                   [Equisetum fluviatile var. limosum]
                                                   [Equisetum fluviatile var. linnaeanum]
                                                   [Equisetum fluviatile var. verticillatum]
                                                   [Equisetum heleocharis f. attenuatum]
                                                   [Equisetum heleocharis f. brachycladon]
                                                   [Equisetum heleocharis f. commune]
                                                   [Equisetum heleocharis f. leptocladon]
                                                   [Equisetum heleocharis f. uliginosum]
                                                   [Equisetum heleocharis f. vulgare]
                                                   [Equisetum heleocharis var. fluviatile]
                                                   [Equisetum heleocharis var. limosum]
                                                   [Equisetum heleocharis]
                                                   [Equisetum limosum f. brachycladon]
                                                   [Equisetum limosum f. fluviatile]
                                                   [Equisetum limosum f. leptocladon]
                                                   [Equisetum limosum f. linnaeanum]
                                                   [Equisetum limosum f. minus]
                                                   [Equisetum limosum f. natans]
                                                   [Equisetum limosum var. aphyllum]
                                                   [Equisetum limosum var. attenuatum]
                                                   [Equisetum limosum var. brachycladon]
                                                   [Equisetum limosum var. candelabrum]
                                                   [Equisetum limosum var. fluviatile]
                                                   [Equisetum limosum var. leptocladon]
                                                   [Equisetum limosum var. linnaeanum]
                                                   [Equisetum limosum var. minus]
                                                   [Equisetum limosum var. polystachyum]
                                                   [Equisetum limosum var. ramosum]
                                                   [Equisetum limosum var. simplicissimum]
                                                   [Equisetum limosum var. sterile]
                                                   [Equisetum limosum var. subramosum]
                                                   [Equisetum limosum var. verticillatum]
                                                   [Equisetum limosum]
                                                   [Equisetum polystachium]
                                             Equisetum giganteum
                                                   [Equisetum araucanum]
                                                   [Equisetum bolivianum]
                                                   [Equisetum brasiliense f. nuda]
                                                   [Equisetum brasiliense f. ramosa]
                                                   [Equisetum brasiliense var. nuda]
                                                   [Equisetum brasiliense var. ramosa]
                                                   [Equisetum brasiliense]
                                                   [Equisetum caracasanum]
                                                   [Equisetum elongatum var. affine]
                                                   [Equisetum elongatum var. dolosum]
                                                   [Equisetum elongatum var. scaberrimum]
                                                   [Equisetum giganteum var. asperrimum]
                                                   [Equisetum giganteum var. caracasanum]
                                                   [Equisetum giganteum var. chilense]
                                                   [Equisetum giganteum var. digitaliferum]
                                                   [Equisetum humboldtii]
                                                   [Equisetum lechleri]
                                                   [Equisetum martii var. minus]
                                                   [Equisetum martii]
                                                   [Equisetum philippi]
                                                   [Equisetum poeppigianum]
                                                   [Equisetum pyramidale]
                                                   [Equisetum ramosissimum var. affine]
                                                   [Equisetum ramosissimum var. scaberium]
                                                   [Equisetum scandens]
                                                   [Equisetum tarapacanum]
                                                   [Equisetum xylochaetum]
                                                   [Hippochaete gigantea]
                                                   [Hippochaete hyemalis var. affinis]
                                             Equisetum hyemale
                                                   [Equisetum hiemale]
                                               Equisetum hyemale subsp. affine
                                                     [Equisetum affine]
                                                     [Equisetum californicum]
                                                     [Equisetum hiemale var. drummondi]
                                                     [Equisetum hiemale var. herbaceum]
                                                     [Equisetum hiemale var. japonicum]
                                                     [Equisetum hiemale var. pumilum]
                                                     [Equisetum hyemale f. herbaceum]
                                                     [Equisetum hyemale f. pumilum]
                                                     [Equisetum hyemale var. affine]
                                                     [Equisetum hyemale var. californica]
                                                     [Equisetum hyemale var. californicum]
                                                     [Equisetum hyemale var. elatum]
                                                     [Equisetum hyemale var. praealtum]
                                                     [Equisetum hyemale var. pseudohyemale]
                                                     [Equisetum hyemale var. ramosum]
                                                     [Equisetum hyemale var. robustum]
                                                     [Equisetum komarovii]
                                                     [Equisetum praealtum f. drummondii]
                                                     [Equisetum praealtum f. neopolystachyum]
                                                     [Equisetum praealtum f. polystachyum]
                                                     [Equisetum praealtum f. pumilum]
                                                     [Equisetum praealtum f. ramosum]
                                                     [Equisetum praealtum f. texanum]
                                                     [Equisetum praealtum var. affine]
                                                     [Equisetum praealtum]
                                                     [Equisetum robustum var. affine]
                                                     [Equisetum robustum var. drummondii]
                                                     [Equisetum robustum var. minus]
                                                     [Equisetum robustum]
                                                     [Hippochaete hyemalis f. affinis]
                                                     [Hippochaete hyemalis var. californica]
                                                     [Hippochaete praealta var. affinis]
                                                     [Hippochaete praealta var. intermedia]
                                                     [Hippochaete praealta var. pseudohyemalis]
                                                     [Hippochaete praealta]
                                               Equisetum hyemale subsp. hyemale
                                                     [Equisetum alpinum]
                                                     [Equisetum asperrimum]
                                                     [Equisetum fusco-zonatum]
                                                     [Equisetum hiemale f. minus]
                                                     [Equisetum hiemale f. ramigera]
                                                     [Equisetum hiemale var. brevivaginatum]
                                                     [Equisetum hiemale var. elatius]
                                                     [Equisetum hiemale var. minus]
                                                     [Equisetum hiemale var. paleaceum]
                                                     [Equisetum hiemale var. rabenhorstii]
                                                     [Equisetum hiemale var. ramigerum]
                                                     [Equisetum hiemale var. subramosum]
                                                     [Equisetum hiemale var. uliginosum]
                                                     [Equisetum hiemale var. vulgare]
                                                     [Equisetum hyemale f. hondae]
                                                     [Equisetum hyemale var. elatius]
                                                     [Equisetum ramosum subsp. paleaceum]
                                                     [Equisetum zonatum]
                                                     [Hippochaete hyemalis f. hondae]
                                                     [Hippochaete hyemalis]
                                               Equisetum hyemale var. hyemale
                                             Equisetum laevigatum
                                                   [Equisetum fontinale]
                                                   [Equisetum funstonii f. caespitosum]
                                                   [Equisetum funstonii f. nudum]
                                                   [Equisetum funstonii f. polystachyum]
                                                   [Equisetum funstonii f. ramosum]
                                                   [Equisetum funstonii var. caespitosum]
                                                   [Equisetum funstonii var. nudum]
                                                   [Equisetum funstonii var. ramosum]
                                                   [Equisetum funstonii]
                                                   [Equisetum kansanum f. caespiticum]
                                                   [Equisetum kansanum f. caespitosum]
                                                   [Equisetum kansanum f. eatonii]
                                                   [Equisetum kansanum f. polystachyum]
                                                   [Equisetum kansanum f. ramosum]
                                                   [Equisetum kansanum f. variegatoides]
                                                   [Equisetum kansanum]
                                                   [Equisetum laevigatum f. caespitosum]
                                                   [Equisetum laevigatum f. polystachum]
                                                   [Equisetum laevigatum f. proliferum]
                                                   [Equisetum laevigatum f. ramosum]
                                                   [Equisetum laevigatum f. scabrellum]
                                                   [Equisetum laevigatum f. variegatoides]
                                                   [Equisetum laevigatum subsp. funstonii]
                                                   [Equisetum laevigatum var. scabrellum]
                                                   [Hippochaete laevigata var. caespitica]
                                                   [Hippochaete laevigata var. caespitosa]
                                                   [Hippochaete laevigata var. funstonii]
                                                   [Hippochaete laevigata var. polystachya]
                                                   [Hippochaete laevigata var. ramosa]
                                                   [Hippochaete laevigata var. variegatoides]
                                                   [Hippochaete laevigata]
                                                   [Hippochaete praealta var. scabrella]
                                             Equisetum myriochaetum
                                                   [Equisetum mexicanum]
                                                   [Equisetum myriochaetum var. densum]
                                                   [Equisetum myriochaetum var. laxum]
                                                   [Equisetum ramosissimum f. muelleri]
                                                   [Equisetum ramosissimum f. sprucei]
                                                   [Hippochaete myriochaeta]
                                             Equisetum nelsonii
                                                   [Equisetum variegatum var. nelsonii]
                                                   [Hippochaete nelsonii]
                                             Equisetum palustre
                                                   [Equisetum palustre f. fallax]
                                                   [Equisetum palustre f. fluitans]
                                                   [Equisetum palustre f. luxurians]
                                                   [Equisetum palustre f. nigridens]
                                                   [Equisetum palustre f. nudum]
                                                   [Equisetum palustre f. prostratum]
                                                   [Equisetum palustre f. ramosissimum]
                                                   [Equisetum palustre f. tenue]
                                                   [Equisetum palustre f. verticillatum]
                                                   [Equisetum palustre var. alpinum]
                                                   [Equisetum palustre var. americanum]
                                                   [Equisetum palustre var. leptostachyum]
                                                   [Equisetum palustre var. microstachyum]
                                                   [Equisetum palustre var. monostachyon]
                                                   [Equisetum palustre var. nigridens]
                                                   [Equisetum palustre var. nudum]
                                                   [Equisetum palustre var. paludosum]
                                                   [Equisetum palustre var. polystachyon]
                                                   [Equisetum palustre var. polystachyum]
                                                   [Equisetum palustre var. prostratum]
                                                   [Equisetum palustre var. simplicissimum]
                                                   [Equisetum palustre var. szechuanense]
                                                   [Equisetum palustre var. tenue]
                                                   [Equisetum pratense var. prostratum]
                                             Equisetum pratense
                                                   [Allostelites pratense]
                                                   [Equisetum pratense f. praecox]
                                                   [Equisetum pratense f. serotinum]
                                                   [Equisetum umbrosum]
                                             Equisetum ramosissimum
                                                   [Equisetum paleaceum]
                                               Equisetum ramosissimum subsp. debile
                                                     [Equisetum altissimum]
                                                     [Equisetum aquaticum]
                                                     [Equisetum debile var. caespitosum]
                                                     [Equisetum debile var. divaricatum]
                                                     [Equisetum debile var. gracile]
                                                     [Equisetum debile var. laevissimum]
                                                     [Equisetum debile var. majus]
                                                     [Equisetum debile var. minus]
                                                     [Equisetum debile var. nudum]
                                                     [Equisetum debile var. pashan]
                                                     [Equisetum debile var. polystachyum]
                                                     [Equisetum debile]
                                                     [Equisetum huegelii var. majus]
                                                     [Equisetum huegelii var. minus]
                                                     [Equisetum huegelii]
                                                     [Equisetum laxum]
                                                     [Equisetum pallens]
                                                     [Equisetum ramosissimum f. debile]
                                                     [Equisetum timorianum]
                                                     [Equisetum virgatum]
                                                     [Hippochaete debilis]
                                                     [Hippochaete ramosissima subsp. debilis]
                                               Equisetum ramosissimum subsp. ramosissimum
                                                     [Equisetum azoricum]
                                                     [Equisetum burchellii]
                                                     [Equisetum caespitosum]
                                                     [Equisetum campanulatum]
                                                     [Equisetum elongatum f. minor]
                                                     [Equisetum elongatum f. simplex]
                                                     [Equisetum elongatum f. subverticillatum]
                                                     [Equisetum elongatum var. abyssinicum]
                                                     [Equisetum elongatum var. arabicum]
                                                     [Equisetum elongatum var. arcuatum]
                                                     [Equisetum elongatum var. boivini]
                                                     [Equisetum elongatum var. boryanum]
                                                     [Equisetum elongatum var. burchellii]
                                                     [Equisetum elongatum var. capense]
                                                     [Equisetum elongatum var. distortum]
                                                     [Equisetum elongatum var. dregeanum]
                                                     [Equisetum elongatum var. elegans]
                                                     [Equisetum elongatum var. flagelliferum]
                                                     [Equisetum elongatum var. gracile]
                                                     [Equisetum elongatum var. graecum]
                                                     [Equisetum elongatum var. hispanicum]
                                                     [Equisetum elongatum var. humile]
                                                     [Equisetum elongatum var. iaponicum]
                                                     [Equisetum elongatum var. incanum]
                                                     [Equisetum elongatum var. lohseanum]
                                                     [Equisetum elongatum var. malabaricum]
                                                     [Equisetum elongatum var. nudum]
                                                     [Equisetum elongatum var. ornatum]
                                                     [Equisetum elongatum var. ramosissimum]
                                                     [Equisetum elongatum var. scabrum]
                                                     [Equisetum elongatum var. simplex]
                                                     [Equisetum elongatum var. sinaiticum]
                                                     [Equisetum elongatum var. subverticillatum]
                                                     [Equisetum elongatum var. tenuissimum]
                                                     [Equisetum elongatum var. virgatum]
                                                     [Equisetum elongatum]
                                                     [Equisetum ephedroides]
                                                     [Equisetum hiemale subsp. ramosum]
                                                     [Equisetum hiemale subsp. sieboldii]
                                                     [Equisetum hiemale var. procerum]
                                                     [Equisetum hiemale var. subverticillatum]
                                                     [Equisetum hungaricum]
                                                     [Equisetum hyemale var. arenarium]
                                                     [Equisetum hyemale var. elongatum]
                                                     [Equisetum hyemale var. gracile]
                                                     [Equisetum hyemale var. subverticillatum]
                                                     [Equisetum hyemale var. virgatum]
                                                     [Equisetum incanum]
                                                     [Equisetum multicaule]
                                                     [Equisetum multiforme var. campanulatum]
                                                     [Equisetum multiforme var. paleaceum]
                                                     [Equisetum multiforme var. ramosum]
                                                     [Equisetum multiforme var. tenue]
                                                     [Equisetum multiforme]
                                                     [Equisetum pallidum]
                                                     [Equisetum pannonicum]
                                                     [Equisetum procerum]
                                                     [Equisetum ramosissimum subsp. incanum]
                                                     [Equisetum ramosissimum subsp. paleaceum]
                                                     [Equisetum ramosissimum var. abyssinicum]
                                                     [Equisetum ramosissimum var. altissimum]
                                                     [Equisetum ramosissimum var. arabicum]
                                                     [Equisetum ramosissimum var. arcuatum]
                                                     [Equisetum ramosissimum var. boivinii]
                                                     [Equisetum ramosissimum var. boryanum]
                                                     [Equisetum ramosissimum var. burchellii]
                                                     [Equisetum ramosissimum var. campanulatum]
                                                     [Equisetum ramosissimum var. capense]
                                                     [Equisetum ramosissimum var. distortum]
                                                     [Equisetum ramosissimum var. dregeanum]
                                                     [Equisetum ramosissimum var. elegans]
                                                     [Equisetum ramosissimum var. fastigiatum]
                                                     [Equisetum ramosissimum var. flagelliferum]
                                                     [Equisetum ramosissimum var. gracile]
                                                     [Equisetum ramosissimum var. hispanicum]
                                                     [Equisetum ramosissimum var. humile]
                                                     [Equisetum ramosissimum var. incanum]
                                                     [Equisetum ramosissimum var. jacquemontii]
                                                     [Equisetum ramosissimum var. japonicum]
                                                     [Equisetum ramosissimum var. lohseanum]
                                                     [Equisetum ramosissimum var. malabaricum]
                                                     [Equisetum ramosissimum var. multicaule]
                                                     [Equisetum ramosissimum var. natalense]
                                                     [Equisetum ramosissimum var. nudum]
                                                     [Equisetum ramosissimum var. orientale]
                                                     [Equisetum ramosissimum var. ornatum]
                                                     [Equisetum ramosissimum var. renati]
                                                     [Equisetum ramosissimum var. scabrum]
                                                     [Equisetum ramosissimum var. schleicheri]
                                                     [Equisetum ramosissimum var. simplex]
                                                     [Equisetum ramosissimum var. sinaiticum]
                                                     [Equisetum ramosissimum var. subverticillatum]
                                                     [Equisetum ramosissimum var. virgatum]
                                                     [Equisetum ramosum var. major]
                                                     [Equisetum ramosum var. paleaceum]
                                                     [Equisetum ramosum]
                                                     [Equisetum sieboldii]
                                                     [Equisetum tenue]
                                                     [Equisetum thunbergii]
                                                     [Hippochaete ramosissima var. japonica]
                                                     [Hippochaete ramosissima]
                                                     [Hippochaete ramosissimum]
                                               Equisetum ramosissimum var. ramosissimum
                                             Equisetum scirpoides
                                                   [Equisetum hiemale var. tenellum]
                                                   [Equisetum reptans]
                                                   [Equisetum scirpoides var. alpestre]
                                                   [Equisetum scirpoides var. caespitosum]
                                                   [Equisetum scirpoides var. elatum]
                                                   [Equisetum scirpoides var. minus]
                                                   [Equisetum scirpoides var. pedunculatum]
                                                   [Equisetum scirpoides var. ramulosum]
                                                   [Equisetum setaceum]
                                                   [Equisetum tenellum]
                                                   [Hippochaete scirpoides]
                                             Equisetum silvaticum
                                             Equisetum sylvaticum
                                                   [Allostelites sylvaticum]
                                                   [Equisetum capillare]
                                                   [Equisetum silvaticum var. squarrosum]
                                                   [Equisetum sylvaticum f. capillare]
                                                   [Equisetum sylvaticum f. multiramosum]
                                                   [Equisetum sylvaticum f. neoserotinum]
                                                   [Equisetum sylvaticum f. opsistachyum]
                                                   [Equisetum sylvaticum f. serum]
                                                   [Equisetum sylvaticum f. tardatum]
                                                   [Equisetum sylvaticum var. multiramosum]
                                                   [Equisetum sylvaticum var. pauciramosum]
                                               Equisetum sylvaticum var. sylvaticum
                                             Equisetum telmateia
                                               Equisetum telmateia subsp. braunii
                                                     [Equisetum braunii]
                                                     [Equisetum eburneum var. frondescens]
                                                     [Equisetum eburneum var. serotinum]
                                                     [Equisetum telmateia var. braunii]
                                                     [Equisetum telmateia var. hillii]
                                               Equisetum telmateia subsp. telmateia
                                                     [Equisetum caenosum]
                                                     [Equisetum eburneum]
                                                     [Equisetum macrostachyon]
                                                     [Equisetum majus var. serotinum]
                                                     [Equisetum majus]
                                                     [Equisetum maximum f. pluviale]
                                                     [Equisetum maximum f. serotinum]
                                                     [Equisetum maximum]
                                                     [Equisetum telmateia f. breve]
                                                     [Equisetum telmateia f. conforme]
                                                     [Equisetum telmateia f. dactyloideum]
                                                     [Equisetum telmateia f. ramulosum]
                                                     [Equisetum telmateia f. vaucheri]
                                                     [Equisetum telmateia var. conforme]
                                                     [Equisetum telmateia var. pleiostachya]
                                                     [Equisetum telmateia var. polystachyum]
                                               Equisetum telmateia var. telmateia
                                             Equisetum trachyodon
                                                   [Equisetum hiemale var. doellii]
                                                   [Equisetum hiemale var. trachyodon]
                                                   [Equisetum hyemale f. multirameum]
                                                   [Equisetum hyemale subsp. trachyodon]
                                                   [Equisetum hyemale var. jesupii]
                                                   [Equisetum hyemale var. mackayi]
                                                   [Equisetum hyemale var. trachyodon]
                                                   [Equisetum mackaii]
                                                   [Equisetum mackayi]
                                                   [Equisetum trachyodon f. geminatum]
                                                   [Equisetum trachyodon f. multirameum]
                                                   [Equisetum variegatum f. geminatum]
                                                   [Equisetum variegatum f. multirameum]
                                                   [Equisetum variegatum var. anglicum]
                                                   [Equisetum variegatum var. concolor]
                                                   [Equisetum variegatum var. continentale]
                                                   [Equisetum variegatum var. jesupii]
                                                   [Equisetum variegatum var. trachyodon]
                                                   [Hippochaete fuchsii]
                                                   [Hippochaete hyemalis var. jesupii]
                                                   [Hippochaete trachyodon]
                                                   [Hippochaete variegata var. jesupii]
                                             Equisetum variegatum
                                               Equisetum variegatum subsp. alaskanum
                                                     [Equisetum alaskanum]
                                                     [Equisetum variegatum var. alaskanum]
                                                     [Hippochaete hyemalis var. alaskana]
                                                     [Hippochaete variegata subsp. alaskana]
                                               Equisetum variegatum subsp. variegatum
                                                     [Equisetum arenarium]
                                                     [Equisetum hiemale subsp. variegatum]
                                                     [Equisetum hiemale var. variegatum]
                                                     [Equisetum hyemale subsp. variegatum]
                                                     [Equisetum hyemale var. variegatum]
                                                     [Equisetum multiforme var. variegatum]
                                                     [Equisetum reptans var. variegatum]
                                                     [Equisetum serotinum]
                                                     [Equisetum variegatum f. anceps]
                                                     [Equisetum variegatum f. caespitosum]
                                                     [Equisetum variegatum f. polystachyum]
                                                     [Equisetum variegatum f. tortuosum]
                                                     [Equisetum variegatum f. virgatum]
                                                     [Equisetum variegatum var. alpestre]
                                                     [Equisetum variegatum var. anceps]
                                                     [Equisetum variegatum var. arenarium]
                                                     [Equisetum variegatum var. caespitosum]
                                                     [Equisetum variegatum var. elatum]
                                                     [Equisetum variegatum var. huefleri]
                                                     [Equisetum variegatum var. majus]
                                                     [Equisetum variegatum var. multirameum]
                                                     [Equisetum variegatum var. reptans]
                                                     [Equisetum variegatum var. serotinum]
                                                     [Equisetum variegatum var. virgatum]
                                                     [Equisetum variegatum var. wilsoni]
                                                     [Hippochaete variegata var. anceps]
                                                     [Hippochaete variegata]
                                                     [Hippochaete variegatum]
                                               Equisetum variegatum var. variegatum
                                             Equisetum x alsaticum
                                                   [Equisetum alsaticum]
                                                   [Hippochaete alsatica]
                                             Equisetum x ascendens
                                             Equisetum x bowmanii
                                             Equisetum x dycei
                                             Equisetum x ferrissii
                                                   [Equisetum ferrissii]
                                                   [Equisetum fluviatile var. siccum]
                                                   [Equisetum hyemale f. polystachyum]
                                                   [Equisetum hyemale f. proliferum]
                                                   [Equisetum hyemale var. intermedium]
                                                   [Equisetum hyemale var. suksdorfii]
                                                   [Equisetum hyemale x Equisetum laevigatum]
                                                   [Equisetum intermedium]
                                                   [Equisetum kansanum f. elatum]
                                                   [Equisetum laevigatum var. elatum]
                                                   [Equisetum praealtum var. laevigatum]
                                                   [Hippochaete ferrissii]
                                                   [Hippochaete laevigata var. eatonii]
                                                   [Hippochaete praealta var. suksdorfii]
                                             Equisetum x font-queri
                                             Equisetum x geissertii
                                             Equisetum x haukeanum
                                             Equisetum x hybridum
                                             Equisetum x lapponicum
                                             Equisetum x litorale
                                                   [Equisetum litorale f. formosum]
                                                   [Equisetum litorale var. arvensiforme]
                                                   [Equisetum litorale]
                                                   [Equisetum littorale f. arvensiforme]
                                                   [Equisetum littorale]
                                             Equisetum x lofotense
                                             Equisetum x mchaffieae
                                             Equisetum x meridionale
                                                   [Equisetum meridionale]
                                                   [Equisetum trachyodon f. fuchsii]
                                                   [Equisetum variegatum var. meridionale]
                                                   [Hippochaete meridionalis]
                                                   [Hippochaete naegelianum]
                                             Equisetum x mildeanum
                                             Equisetum x montellii
                                                   [Equisetum montellii]
                                                   [Equisetum suecicum]
                                             Equisetum x moorei
                                                   [Equisetum hiemale var. occidentale]
                                                   [Equisetum hiemale var. schleicheri]
                                                   [Equisetum hyemale f. moorei]
                                                   [Equisetum hyemale subsp. moorei]
                                                   [Equisetum hyemale var. moorei]
                                                   [Equisetum hyemale var. polystachyum]
                                                   [Equisetum moorei]
                                                   [Equisetum occidentale]
                                                   [Equisetum ramosissimum subsp. moorei]
                                                   [Equisetum samuelssonii]
                                                   [Equisetum schleicheri]
                                                   [Equisetum trachyodon var. schleicheri]
                                                   [Hippochaete moorei]
                                                   [Hippochaete samuelssonii]
                                             Equisetum x naegelianum
                                             Equisetum x robertsii
                                                   [Equisetum dubium]
                                                   [Equisetum robertsii]
                                             Equisetum x rothmaleri
                                                   [Equisetum rothmaleri]
                                                   [Equisetum torgesianum]
                                             Equisetum x schaffneri
                                                   [Equisetum elongatum var. annuliferum]
                                                   [Equisetum ramosissimum var. annuliferum]
                                                   [Equisetum schaffneri]
                                                   [Hippochaete schaffneri]
                                             Equisetum x sergijevskianum
                                             Equisetum x wilmottii
                                             † Equisetum abiquiense
                                             † Equisetum alexanderi
                                             † Equisetum aquatile
                                             † Equisetum arcticum
                                             † Equisetum arenaceum
                                             † Equisetum boureaui
                                             † Equisetum canaliculatum
                                             † Equisetum cascadensis
                                             † Equisetum collieri
                                             † Equisetum coloradense
                                             † Equisetum columnare
                                             † Equisetum deciduum
                                             † Equisetum florissantense
                                             † Equisetum fluviatoides
                                             † Equisetum globulosum
                                             † Equisetum haguei
                                             † Equisetum haydenii
                                             † Equisetum knowltoni
                                             † Equisetum laterale
                                             † Equisetum lyellii
                                             † Equisetum magnum
                                             † Equisetum marylandicum
                                             † Equisetum montanensis
                                             † Equisetum newberryi
                                             † Equisetum octangulatum
                                             † Equisetum oregonense
                                             † Equisetum powelli
                                             † Equisetum rogersi
                                             † Equisetum texense
                                             † Equisetum tipperarense
                                             † Equisetum virginicum
                                             † Equisetum winchesteri
                                     † Equicalastrobus
                                             † Equicalastrobus chinleana
                                     † Equisetites
                                             † Equisetites arenaceus
                                             † Equisetites asperrimus
                                             † Equisetites bradyi
                                             † Equisetites calamitinoides
                                             † Equisetites columnaris
                                             † Equisetites conicus
                                             † Equisetites fertilis
                                             † Equisetites foveolatus
                                             † Equisetites gracilis
                                             † Equisetites intermedius
                                             † Equisetites occidentalis
                                                   [† Equisitites occidentalis]
                                             † Equisetites praelongris
                                             † Equisetites scanicus
                                             † Equisetites subolatus
                                     † Equisetosporites
                                             † Equisetosporites albertensis
                                             † Equisetosporites ambiguus
                                             † Equisetosporites cancellatus
                                             † Equisetosporites chinleana
                                             † Equisetosporites claricristatus
                                             † Equisetosporites fissuratus
                                             † Equisetosporites fragilis
                                             † Equisetosporites irregularis
                                             † Equisetosporites leptomatus
                                             † Equisetosporites lusaticus
                                             † Equisetosporites multicostatus
                                             † Equisetosporites notensis
                                     † Equisitites
                                     † Phylladelphia
                                             † Phylladelphia strigata
                                     † Physagenia
                                     † Pilasporites
                                     † Spaciinodum