#spleenwort  any of various chiefly rock-inhabiting ferns of the genus Asplenium
  supertype:  fern  any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
  member of:  genus_Asplenium
  subtype:  black_spleenwort__blackspleenwort__Asplenium_adiantum-nigrum  spleenwort of Europe and Africa and Asia having pinnate fronds and yielding an astringent
  subtype:  ebony_spleenwort__ebonyspleenwort__Scott's_Spleenwort__Asplenium_platyneuron  common North American fern with polished black stripes
  subtype:  black-stem_spleenwort__black-stemmed_spleenwort__blackstemmedspleenwort__little_ebony_spleenwort  fern of tropical America: from southern United States to West Indies and Mexico to Brazil
  subtype:  walking_fern__walkingfern__walking_leaf__walkingleaf__Asplenium_rhizophyllum__Camptosorus_rhizophyllus  ferns having lanceolate fronds that root at the tip
  subtype:  maidenhair_spleenwort__Asplenium_trichomanes  small rock-inhabiting fern of northern temperate zone and Hawaii with pinnate fronds
  subtype:  green_spleenwort__greenspleenwort__aspleniumviride  small often many-crowned fern with slim green fronds; widely distributed in cool parts of northern hemisphere
  subtype:  mountain_spleenwort__Asplenium_montanum  a spleenwort of eastern North America
  subtype:  wall_rue_spleenwort__wall_rue__Asplenium_ruta-muraria  small delicate spleenwort found on a steep slope (as a wall or cliff) of Eurasia and North America
  subtype:  Bradley's_spleenwort__Asplenium_bradleyi  a spleenwort of eastern to southern United States
  subtype:  lobed_spleenwort__lobedspleenwort__Asplenium_pinnatifidum  a spleenwort of eastern and southern United States
  subtype:  lanceolate_spleenwort__Asplenium_billotii  a spleenwort of western Europe

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