FRQ
   61 NYMPHAEA ALBA L.        1-6
   53 POTAMOGETON NATANS L.   1-6
   51 TRAPA NATANS L.         1-6
   37 POTAMOGETON TRICHOIDES  1-6
   29 NYMPHAEA ALBA L.        5-6
   22 RANUNCULUS AQUATILIS L. 1-6
   19 POTAMOGETON LUCENS L.   1-6
   18 POTAMOGETON OBTUSIFOLIU 1-6
   17 POTAMOGETON NATANS L.   4-6
   16 UTRICULARIA MAJOR SCHMI 1-6
   15 NUPHAR LUTEUM SM.       1-6
   15 MYRIOPHYLLUM SPICATUM L 1-6

   14 HELODEA CANADENSIS RICH 1-6
   11 POTAMOGETON TRICHOIDES  4-6
   11 SCIRPUS ACICULARIS L.   1-6
    9 TRAPA NATANS L.         4-6
    8 NAIAS MAJOR ALL.        1-6
    8 SCIRPUS LACUSTRIS L.    1-6
    8 HOTTONIA PALUSTRIS L.   1-6
    7 POTAMOGETON LUCENS L.   4-6
    7 SAGITTARIA SAGITTIFOLIA 1-6
    6 LEMNA MINOR L.          1-6
    6 SAGITTARIA SAGITTIFOLIA 3-6
    6 UTRICULARIA MAJOR SCHMI 3-6

    4 NAIAS MINOR ALL.        1-6
    4 ALISMA PLANTAGO L.      1-6
    3 SPARGANIUM SIMPLEX HUDS 1-6
    3 POTAMOGETON GRAMINEUS L 1-6
    3 POTAMOGETON CRISPUS L.  1-6
    3 HELODEA CANADENSIS RICH 4-6
    3 HOTTONIA PALUSTRIS L.   3-6
    3 CERATOPHYLLUM DEMERSUM  1-6
    2 POTAMOGETON PUSILLUS L. 1-6
    2 POTAMOGETON PUSILLUS L. 3-6
    2 POTAMOGETON COMPRESSUS  1-3
    2 SCIRPUS ACICULARIS L.   5-6

    2 RANUNCULUS AQUATILIS L. 4-6
    2 MYRIOPHYLLUM VERTICILLA 1-6
    1 TYPHA LATIFOLIA L.      1-6
    1 POTAMOGETON PECTINATUS  1-6
    1 POTAMOGETON OBTUSIFOLIU 4-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 LEMNA TRISULCA L.       1-6
    1 UTRICULARIA VULGARIS L. 1-6
    1 CERATOPHYLLUM SUBMERSUM 1-6