#order_Isoetales__Isoetales  aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales
  supertype:  plant_order__plantorder  the order of plants
  member:  family_Isoetaceae
  member of:  class_Lycopsida__Lycopsida__Lycopodiate__class_Lycopodiate  club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
     member of:  division_Pteridophyta__Pteridophyta  containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
        member of:  kingdom_Plantae__Plantae__plant_kingdom__plantkingdom  taxonomic kingdom comprising all living or extinct plants

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