#family_Scheuchzeriaceae__Scheuchzeriaceae__Juncaginaceae__family_Juncaginaceae__arrow-grass_family__arrowgrassfamily  a family of monocotyledonous bog herbs of order Naiadales
  supertype:  monocot_family__monocotfamily__liliopsid_family__liliopsidfamily  family of flowering plants having a single cotyledon (embryonic leaf) in the seed
  member of:  order_Naiadales
  member:  genus_Triglochin__Triglochin  perennial or annual bog or marsh plants; includes arrow grass
     member:  arrow_grass__arrowgras__Triglochin_maritima  tufted perennial found in shallow water or marshland; sometimes poisons livestock

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