#whisk_fern__whiskfern  chiefly tropical clump-forming plants of skeletal appearance resembling whisk brooms; lacking roots
  supertype:  fern_ally  pteridophytes of other classes than Filicopsida
  member of:  genus_Psilotum
  subtype:  skeleton_fork_fern__Psilotum_nudum  pantropical epiphytic or terrestrial whisk fern with usually dull yellow branches and minute leaves; America; Japan; Australia

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