FRQ
  371 CERATOPHYLLUM DEMERSUM  1-6
  361 POTAMOGETON PECTINATUS  1-6
  346 MYRIOPHYLLUM SPICATUM L 1-6
  244 LEMNA MINOR L.          1-6
  238 SPARGANIUM SIMPLEX HUDS 1-6
  227 HELODEA CANADENSIS RICH 1-6
  222 NUPHAR LUTEUM SM.       1-6
  206 RANUNCULUS CIRCINATUS S 1-6
  188 CALLITRICHE OBTUSANGULA 1-6
  181 POTAMOGETON LUCENS L.   1-6
  175 POTAMOGETON CRISPUS L.  1-6
  143 MYRIOPHYLLUM VERTICILLA 1-6
  140 SPIRODELA POLYRRHIZA (L 1-6
  134 POTAMOGETON PUSILLUS L. 1-6
  122 POTAMOGETON PERFOLIATUS 1-6
  122 LEMNA TRISULCA L.       1-6
  109 CERATOPHYLLUM DEMERSUM  4-6
   91 RANUNCULUS CIRCINATUS S 3-6
   88 POTAMOGETON FLUITANS RO 1-6
   87 NUPHAR LUTEUM SM.       4-6
   82 SAGITTARIA SAGITTIFOLIA 1-6
   76 CALLITRICHE OBTUSANGULA 3-6
   75 MYRIOPHYLLUM SPICATUM L 4-6
   72 SPARGANIUM SIMPLEX HUDS 3-6
   72 POTAMOGETON PECTINATUS  4-6
   72 HELODEA CANADENSIS RICH 4-6
   68 POTAMOGETON MUCRONATUS  1-5
   58 POTAMOGETON NATANS L.   1-6
   55 ZANNICHELLIA PALUSTRIS  1-6

   55 POTAMOGETON DENSUS L.   1-6
   54 LEMNA MINOR L.          3-6
   47 RANUNCULUS FLUITANS LAM 1-6
   44 POTAMOGETON CRISPUS L.  2-6
   40 NAIAS MAJOR ALL.        1-6
   40 BUTOMUS UMBELLATUS L.   1-6
   39 POTAMOGETON PERFOLIATUS 3-6
   39 HOTTONIA PALUSTRIS L.   1-6
   38 SIUM ERECTUM HUDSON     1-6
   35 POTAMOGETON PUSILLUS L. 3-6
   35 POTAMOGETON FLUITANS RO 4-6
   35 HIPPURIS VULGARIS L.    1-6
   32 AZOLLA FILICULOIDES LAM 1-6
   27 POTAMOGETON LUCENS L.   4-6
   27 SAGITTARIA SAGITTIFOLIA 3-6
   26 POTAMOGETON MUCRONATUS  3-5
   25 POTAMOGETON TRICHOIDES  1-6
   25 NYMPHAEA ALBA L.        1-6
   24 LEMNA GIBBA L.          1-6
   24 HYDROCHARIS MORSUS-RANA 1-6
   24 VERONICA ANAGALLIS L.   1-5
   23 POTAMOGETON OBTUSIFOLIU 1-6
   20 SPIRODELA POLYRRHIZA (L 3-6
   20 RANUNCULUS TRICHOPHYLLU 1-6
   18 POTAMOGETON CRISPUS L.  3-6
   18 NAIAS MAJOR ALL.        4-6
   16 HIPPURIS VULGARIS L.    3-6
   16 NASTURTIUM OFFICINALE R 1-6
   15 SPARGANIUM RAMOSUM CURT 1-6

   15 POTAMOGETON DENSUS L.   3-6
   14 LEMNA TRISULCA L.       4-6
   14 VALLISNERIA SPIRALIS L. 1-6
   13 POTA PUSI SUBS PANORMIT 1-6
   13 HOTTONIA PALUSTRIS L.   3-6
   13 UTRICULARIA VULGARIS L. 1-6
   12 RANU TRIC VAR. TRICHOPH 1-6
   12 MYRIOPHYLLUM VERTICILLA 4-6
   11 RORIPA AMPHIBIA (L.) BE 1-6
   10 ZANN PALU VAR. PALUSTRI 1-6
   10 TRAPA NATANS L.         1-6
    8 POTAMOGETON ACUTIFOLIUS 1-6
    7 POTAMOGETON X-ZIZI MERT 1-6
    7 POLYGONUM HYDROPIPER L. 1-6
    6 POTAMOGETON TRICHOIDES  4-6
    6 POTAMOGETON NATANS L.   4-6
    6 UTRICULARIA VULGARIS L. 3-6
    5 SALVINIA NATANS (L.) AL 1-6
    5 NAIAS MINOR ALL.        1-6
    5 SCIRPUS LACUSTRIS L.    1-6
    5 RANUNCULUS AQUATILIS L. 1-6
    5 UTRICULARIA MAJOR SCHMI 1-6
    4 ZANNICHELLIA PALUSTRIS  4-6
    4 BUTOMUS UMBELLATUS L.   3-6
    4 ALISMA PLANTAGO L.      1-6
    4 OENANTHE FLUVIATILIS CO 1-4
    4 RANUNCULUS FLUITANS LAM 3-6
    4 LUDWIGIA PALUSTRIS (L.) 1-6
    3 AZOLLA FILICULOIDES LAM 3-6

    3 POTAMOGETON OBTUSIFOLIU 4-6
    3 VERONICA ANAGALLIS L.   2-5
    3 RANUNCULUS TRICHOPHYLLU 3-6
    3 NYMPHOIDES PELTATA (GME 1-6
    2 SPARGANIUM RAMOSUM CURT 3-6
    2 POTA PUSI SUBS PANORMIT 4-6
    2 HYDROCHARIS MORSUS-RANA 4-6
    2 GLYCERIA ALTISSIMA (MOE 1-6
    2 ACORUS CALAMUS L.       1-6
    2 RANUNCULUS FLUITANS LAM 4-6
    1 TYPHA LATIFOLIA L.      1-6
    1 SPARGANIUM MINIMUM FRIE 1-6
    1 POTAMOGETON RUFESCENS S 1-6
    1 JUNCUS SUPINUS MOENCH   1-6
    1 GLYCERIA FLUITANS (L.)  1-6
    1 SIUM ERECTUM HUDSON     4-6
    1 OENANTHE FLUVIATILIS CO 3-4
    1 APIUM NODIFLORUM (L.) L 1-6
    1 VERONICA BECCABUNGA L.  1-6
    1 VERO ANAG SUBS AQUATICA 1-5
    1 RANUNCULUS SCELERATUS L 1-6
    1 RANUNCULUS AQUATILIS L. 4-6
    1 RUMEX HYDROLAPATHUM HUD 1-6
    1 POLYGONUM AMPHIBIUM L.  1-6
    1 LUDWIGIA PALUSTRIS (L.) 4-6
    1 NYMPHAEA ALBA L.        5-6
    1 NASTURTIUM OFFICINALE R 3-6