#wood_fern__wood-fern  any of various ferns of the genus Dryopteris
  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_Dryopteris
  subtype:  fragrant_cliff_fern__fragrant_shield_fern__fragrant_wood_fern__Dryopteris_fragrans  fern or northern Eurasia and North America having fragrant fronds
  subtype:  male_fern__Dryopteris_filix-mas  fern of North America and Europe whose rhizomes and stalks yield an oleoresin used to expel tapeworms
  subtype:  marginal_wood_fern__evergreen_wood_fern__leatherleaf_wood_fern__Dryopteris_marginalis  North American fern with evergreen fronds
  subtype:  mountain_male_fern__Dryopteris_oreades  a fern of the genus Dryopteris

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