#fern  any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
  supertype:  #pteridophyte__nonflowering_plant  plants having vascular tissue and reproducing by spores
  subtype:  #pecopteris  #filmy_fern  #bristle_fern  #osmund  #crape_fern  #crepe_fern  #curly_grass_fern  #pine_fern  #climbing_fern  #scented_fern  #aquatic_fern  #adder's_tongue_fern  #grape_fern  #flowering_fern  #giant_scrambling_fern  #umbrella_fern  #polypody  #bear's-paw_fern  #strap_fern  #Drynaria_rigidula  #lecanopteris  #snake_polypody  #climbing_bird's_nest_fern  #golden_polypody  #staghorn_fern  #felt_fern  #Solanopteris_bifrons  #grass_fern  #spleenwort  #bird's_nest_fern  #Asplenium_scolopendrium  #scale_fern  #Schaffneria_nigripes  #scolopendrium  #hard_fern  #doodia  #chain_fern  #tree_fern  #davallia  #hay-scented_fern  #pasture_brake  #bracken  #false_bracken  #shield_fern  #wood_fern  #lady_fern  #glade_fern  #Cyrtomium_aculeatum  #bladder_fern  #silvery_spleenwort  #oak_fern  #limestone_fern  #ostrich_fern  #hart's-tongue_fern  #sensitive_fern  #Christmas_fern  #holly_fern  #leatherleaf_fern  #Tectaria_cicutaria  #Indian_button_fern  #woodsia  #oleander_fern  #sword_fern  #leather_fern  #maidenhair_fern  #annual_fern  #lip_fern  #lace_fern  #bamboo_fern  #rock_brake  #hand_fern  #cliff_brake  #button_fern  #Pityrogramma_argentea  #silver_fern  #golden_fern  #gold_fern  #brake.fern  #Pteris_cretica  #spider_brake  #ribbon_fern  #potato_fern  #marsh_fern  #christella  #mountain_fern  #New_York_fern  #Massachusetts_fern  #beech_fern
  member of:  #class_Filicopsida
  part:  #fern_seed  the asexual spore of ferns that resembles dust; once thought to be seeds and to make the possessor invisible

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