psilopsida

Noun
  1. Whisk ferns;
    Comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs (synset 113236834)
    is a type of: class - (biology) a taxonomic group containing one or more orders
    member holonym: order psilotales, psilotales - lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots
    belongs to: 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
    same as: class psilopsida, class psilotatae, psilotatae

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