#rock_plant  plant that grows on or among rocks or is suitable for a rock garden
  supertype:  #plant__flora__plant_life__plantlife  a living organism lacking the power of locomotion
  subtype:  #lithophyte__lithophytic_plant__lithophyticplant  plant that grows on rocks or stony soil and derives nourishment from the atmosphere
  subtype:  #rupestral_plant__rupestralplant__rupestrine_plant__rupicolous_plant__saxicolous_plant  plants growing among rocks

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