#family_Zannichelliaceae__Zannichelliaceae  alternative classification for some genera included in Potamogetonaceae; one species
  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_Zannichellia__Zannichellia  horned pondweed: completely submerged herbs; in some classifications included in Potamogetonaceae

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