#arborvitae  any of several Asian and North American conifers of the genera Thuja and Thujopsis
  supertype:  #conifer__coniferous_tree  any gymnospermous tree or shrub bearing cones
  subtype:  #western_red_cedar__red_cedar__canoe_cedar__canoecedar__Thuja_plicata  large valuable arborvitae of northwestern United States
  subtype:  #American_arborvitae__northern_white_cedar__white_cedar__Thuja_occidentalis  small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets
  subtype:  #Oriental_arborvitae__Thuja_orientalis__Platycladus_orientalis  Asiatic shrub or small tree widely planted in United States and Europe; in some classifications assigned to its own genus
  subtype:  #hiba_arborvitae__Thujopsis_dolobrata  slow-growing medium-large Japanese evergreen used as an ornamental

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