FRQ
  111 ARUNDO PHRAGMITES L.    1-6
   66 LEMNA MINOR L.          1-6
   61 CERATOPHYLLUM DEMERSUM  1-6
   58 POTAMOGETON LUCENS L.   1-6
   52 HELODEA CANADENSIS RICH 1-6
   46 LEMNA TRISULCA L.       1-6
   43 MYRIOPHYLLUM VERTICILLA 1-6
   42 NUPHAR LUTEUM SM.       1-6
   38 POTAMOGETON NATANS L.   1-6
   35 HYDROCHARIS MORSUS-RANA 1-6
   30 HOTTONIA PALUSTRIS L.   1-6
   28 SPIRODELA POLYRRHIZA (L 1-6
   26 POTAMOGETON LUCENS L.   4-6
   24 LEMNA MINOR L.          3-6
   23 SPARGANIUM SIMPLEX HUDS 1-6
   23 NUPHAR LUTEUM SM.       4-6
   23 CERATOPHYLLUM DEMERSUM  4-6
   22 RANUNCULUS CIRCINATUS S 1-6
   19 HYDROCHARIS MORSUS-RANA 4-6
   18 POTAMOGETON PUSILLUS L. 1-6
   18 NYMPHAEA ALBA L.        1-6
   17 SAGITTARIA SAGITTIFOLIA 1-6
   16 LEMNA TRISULCA L.       4-6
   16 CAREX ELATA ALL.        1-6

   14 LEMNA GIBBA L.          1-6
   14 MYRIOPHYLLUM SPICATUM L 1-6
   13 POTAMOGETON NATANS L.   4-6
   12 POTAMOGETON CRISPUS L.  1-6
   12 SAGITTARIA SAGITTIFOLIA 3-6
   11 HELODEA CANADENSIS RICH 4-6
   11 UTRICULARIA VULGARIS L. 1-6
    9 SALVINIA NATANS (L.) AL 1-6
    9 SPARGANIUM SIMPLEX HUDS 3-6
    9 GLYCERIA ALTISSIMA (MOE 1-6
    9 SIUM ERECTUM HUDSON     1-6
    9 HOTTONIA PALUSTRIS L.   3-6
    8 POTAMOGETON PECTINATUS  1-6
    7 SPARGANIUM MINIMUM FRIE 1-6
    7 ARUNDO PHRAGMITES L.    4-6
    7 ALISMA PLANTAGO L.      1-6
    7 MYRIOPHYLLUM VERTICILLA 4-6
    7 CALLITRICHE OBTUSANGULA 1-6
    6 POTAMOGETON DENSUS L.   1-6
    6 HIPPURIS VULGARIS L.    1-6
    5 SPARGANIUM RAMOSUM CURT 1-6
    5 POTAMOGETON CRISPUS L.  2-6
    5 SPIRODELA POLYRRHIZA (L 3-6
    5 SCIRPUS LACUSTRIS L.    1-6

    4 POTAMOGETON TRICHOIDES  1-6
    4 POTAMOGETON CRISPUS L.  3-6
    4 POTAMOGETON ACUTIFOLIUS 1-6
    4 WOLFFIA ARRHIZA (L.) WI 1-6
    4 LEMNA GIBBA L.          4-6
    4 RANUNCULUS CIRCINATUS S 3-6
    4 UTRICULARIA VULGARIS L. 3-6
    4 UTRICULARIA MAJOR SCHMI 1-6
    3 TYPHA LATIFOLIA L.      1-6
    3 POTAMOGETON PUSILLUS L. 3-6
    3 POTAMOGETON MUCRONATUS  1-5
    3 POTAMOGETON ACUTIFOLIUS 4-6
    3 RANUNCULUS TRICHOPHYLLU 1-6
    3 POLYGONUM AMPHIBIUM L.  1-6
    3 UTRICULARIA MINOR L.    1-6
    3 MYRIOPHYLLUM SPICATUM L 4-6
    2 SALVINIA NATANS (L.) AL 5-6
    2 AZOLLA FILICULOIDES LAM 1-6
    2 SPARGANIUM RAMOSUM CURT 3-6
    2 SPARGANIUM MINIMUM FRIE 4-6
    2 POTAMOGETON PERFOLIATUS 1-6
    2 POTAMOGETON DENSUS L.   3-6
    2 OENANTHE PHELLANDRIUM ( 1-6
    2 RUMEX HYDROLAPATHUM HUD 1-6

    2 NYMPHAEA ALBA L.        5-6
    2 MENTHA AQUATICA L.      1-6
    2 MYOSOTIS SCORPIOIDES (L 1-6
    1 AZOLLA FILICULOIDES LAM 3-6
    1 ZANNICHELLIA PALUSTRIS  1-6
    1 POTAMOGETON PERFOLIATUS 3-6
    1 POTAMOGETON PECTINATUS  4-6
    1 POTAMOGETON COMPRESSUS  1-3
    1 NAIAS MAJOR ALL.        1-6
    1 WOLFFIA ARRHIZA (L.) WI 5-6
    1 JUNCUS OBTUSIFLORUS EHR 1-6
    1 SCIRPUS PALUSTRIS L.    1-6
    1 SCIRPUS LACUSTRIS L.    3-6
    1 CAREX PSEUDO-CYPERUS L. 1-6
    1 CAREX ACUTIFORMIS EHRH. 1-6
    1 BUTOMUS UMBELLATUS L.   1-6
    1 LYTHRUM SALICARIA L.    1-6
    1 UTRICULARIA MAJOR SCHMI 3-6
    1 RORIPA AMPHIBIA (L.) BE 1-6
    1 NASTURTIUM OFFICINALE R 1-6
    1 CALLITRICHE STAGNALIS S 1-6