#nettle  any of numerous plants having stinging hairs that cause skin irritation on contact (especially of the genus Urtica or family Urticaceae)
  supertype:  weed  any plant that crowds out cultivated plants
  subtype:  stinging_nettle__Urtica_dioica  perennial Eurasian nettle established in North America having broad coarsely toothed leaves with copious stinging hairs
  subtype:  Roman_nettle__Urtica_pipulifera  annual European nettle with stinging foliage and small clusters of green flowers
  subtype:  wood_nettle__Laportea_canadensis  American perennial herb found in rich woods and provided with stinging hairs; provides fibers used for textiles
  subtype:  richweed__clearweed__dead_nettle__Pilea_pumilla  a plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves
  subtype:  artillery_plant__artilleryplant__Pilea_microphylla  tropical American stingless nettle that discharges its pollen explosively
  subtype:  friendship_plant__panamica__panamiga__Pilea_involucrata  low stingless nettle of Central and South America having velvety brownish-green toothed leaves and clusters of small green flowers

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