29 SPARGANIUM SIMPLEX HUDS 1-6
   25 HELODEA CANADENSIS RICH 1-6
   23 SIUM ERECTUM HUDSON     1-6
   20 RANUNCULUS TRICHOPHYLLU 1-6
   19 POTAMOGETON PUSILLUS L. 1-6
   16 HOTTONIA PALUSTRIS L.   1-6
   16 RANU TRIC VAR. TRICHOPH 1-6
   15 NUPHAR LUTEUM SM.       1-6
   13 LEMNA MINOR L.          1-6
   13 SPARGANIUM SIMPLEX HUDS 3-6

   11 MYRIOPHYLLUM VERTICILLA 1-6
   10 CALLITRICHE OBTUSANGULA 1-6
   10 MYRIOPHYLLUM SPICATUM L 1-6
    9 NUPHAR LUTEUM SM.       4-6
    9 LEMNA TRISULCA L.       1-6
    9 POTAMOGETON PUSILLUS L. 3-6
    7 HOTTONIA PALUSTRIS L.   3-6
    6 SAGITTARIA SAGITTIFOLIA 1-6
    6 POTAMOGETON MUCRONATUS  1-5
    5 CALLITRICHE OBTUSANGULA 3-6

    5 SIUM ERECTUM HUDSON     4-6
    5 LEMNA TRISULCA L.       4-6
    4 OENANTHE FLUVIATILIS CO 3-4
    4 OENANTHE FLUVIATILIS CO 1-4
    4 HELODEA CANADENSIS RICH 4-6
    4 POTAMOGETON NATANS L.   1-6
    3 CERATOPHYLLUM DEMERSUM  1-6
    3 RANUNCULUS CIRCINATUS S 1-6
    3 LEMNA MINOR L.          3-6
    2 HIPPURIS VULGARIS L.    1-6

    2 ALISMA PLANTAGO L.      1-6
    2 SAGITTARIA SAGITTIFOLIA 3-6
    2 POTAMOGETON DENSUS L.   1-6
    1 APIUM NODIFLORUM (L.) L 1-6
    1 ALISMA NATANS L.        1-6
    1 POTAMOGETON MUCRONATUS  3-5
    1 POTAMOGETON PECTINATUS  1-6
    1 POTAMOGETON RUFESCENS S 1-6
    1 SPARGANIUM RAMOSUM CURT 1-6