#sweet_flag__sweetflag__calamus__sweet_calamus__sweetcalamu__myrtle_flag__flagroot__Acorus_calamus  perennial marsh plant having swordlike leaves and aromatic roots
  supertype:  #marsh_plant__marshplant__bog_plant__bogplant__swamp_plant__swampplant  a semi-aquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath
  substance:  #calamus_oil
  member of:  #genus_Acorus
  part:  #calamus  the aromatic root of the sweet flag used medicinally

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