FRQ
   33 NUPHAR LUTEUM SM.       1-6
   31 NYMPHAEA ALBA L.        1-6
   25 MYRIOPHYLLUM VERTICILLA 1-6
   24 CERATOPHYLLUM DEMERSUM  1-6
   17 POTAMOGETON LUCENS L.   1-6
   17 NUPHAR LUTEUM SM.       4-6
   16 MYRIOPHYLLUM SPICATUM L 1-6
   14 TRAPA NATANS L.         1-6
   11 UTRICULARIA MAJOR SCHMI 1-6
    9 MYRIOPHYLLUM VERTICILLA 4-6

    7 NYMPHOIDES PELTATA (GME 1-6
    6 RANUNCULUS CIRCINATUS S 1-6
    6 HIPPURIS VULGARIS L.    1-6
    6 CERATOPHYLLUM DEMERSUM  4-6
    5 NAIAS MAJOR ALL.        1-6
    5 MYRIOPHYLLUM SPICATUM L 4-6
    4 POTAMOGETON LUCENS L.   4-6
    3 POTAMOGETON PECTINATUS  1-6
    3 POTAMOGETON CRISPUS L.  1-6
    3 TRAPA NATANS L.         4-6

    3 NYMPHAEA ALBA L.        5-6
    2 POTAMOGETON PERFOLIATUS 1-6
    2 POTAMOGETON NATANS L.   1-6
    2 LEMNA TRISULCA L.       1-6
    2 HELODEA CANADENSIS RICH 1-6
    1 SALVINIA NATANS (L.) AL 1-6
    1 SPARGANIUM MINIMUM FRIE 1-6
    1 POTAMOGETON PUSILLUS L. 1-6
    1 POTAMOGETON OBTUSIFOLIU 1-6
    1 POTAMOGETON CRISPUS L.  2-6

    1 LEMNA MINOR L.          1-6
    1 SAGITTARIA SAGITTIFOLIA 1-6
    1 SAGITTARIA SAGITTIFOLIA 3-6
    1 HOTTONIA PALUSTRIS L.   1-6
    1 UTRICULARIA VULGARIS L. 1-6
    1 UTRICULARIA MAJOR SCHMI 3-6
    1 HIPPURIS VULGARIS L.    3-6