FRQ
   68 MYRIOPHYLLUM SPICATUM L 1-6
   66 POLYGONUM AMPHIBIUM L.  1-6
   60 NUPHAR LUTEUM SM.       1-6
   55 CERATOPHYLLUM DEMERSUM  1-6
   39 POTAMOGETON LUCENS L.   1-6
   39 POTAMOGETON CRISPUS L.  1-6
   36 LEMNA MINOR L.          1-6
   33 NYMPHAEA ALBA L.        1-6
   31 POTAMOGETON NATANS L.   1-6
   31 HELODEA CANADENSIS RICH 1-6
   28 RORIPA AMPHIBIA (L.) BE 1-6
   27 SPIRODELA POLYRRHIZA (L 1-6
   26 RANUNCULUS CIRCINATUS S 1-6
   25 POLYGONUM AMPHIBIUM L.  2-6
   24 POTAMOGETON PECTINATUS  1-6
   21 MYRIOPHYLLUM VERTICILLA 1-6
   19 ALISMA PLANTAGO L.      1-6
   18 SAGITTARIA SAGITTIFOLIA 1-6
   17 NUPHAR LUTEUM SM.       4-6
   16 MYRIOPHYLLUM SPICATUM L 4-6
   14 SPARGANIUM SIMPLEX HUDS 1-6
   14 HYDROCHARIS MORSUS-RANA 1-6
   13 CERATOPHYLLUM DEMERSUM  4-6
   12 SCIRPUS LACUSTRIS L.    1-6
   11 POTAMOGETON PUSILLUS L. 1-6
   11 HIPPURIS VULGARIS L.    1-6
   11 CALLITRICHE OBTUSANGULA 1-6

   10 POTAMOGETON PERFOLIATUS 1-6
   10 LEMNA TRISULCA L.       1-6
    8 POTAMOGETON CRISPUS L.  2-6
    8 GLYCERIA FLUITANS (L.)  1-6
    8 NYMPHOIDES PELTATA (GME 1-6
    8 UTRICULARIA MAJOR SCHMI 1-6
    7 POTAMOGETON NATANS L.   4-6
    7 POTAMOGETON FLUITANS RO 1-6
    7 SPIRODELA POLYRRHIZA (L 3-6
    7 SAGITTARIA SAGITTIFOLIA 3-6
    7 ALISMA PLANTAGO L.      2-6
    7 TRAPA NATANS L.         1-6
    7 RANUNCULUS CIRCINATUS S 3-6
    7 NYMPHAEA ALBA L.        5-6
    6 POTAMOGETON CRISPUS L.  3-6
    6 RANUNCULUS AQUATILIS L. 1-6
    6 HOTTONIA PALUSTRIS L.   1-6
    6 UTRICULARIA VULGARIS L. 1-6
    5 SPARGANIUM RAMOSUM CURT 1-6
    5 POTAMOGETON LUCENS L.   4-6
    5 LEMNA MINOR L.          3-6
    5 HELODEA CANADENSIS RICH 4-6
    5 SIUM ERECTUM HUDSON     1-6
    5 HIPPURIS VULGARIS L.    3-6
    4 POTAMOGETON PECTINATUS  4-6
    4 POTAMOGETON OBTUSIFOLIU 1-6
    4 POTAMOGETON MUCRONATUS  1-5

    4 GLYCERIA ALTISSIMA (MOE 1-6
    4 BUTOMUS UMBELLATUS L.   1-6
    4 OENANTHE PHELLANDRIUM ( 1-6
    4 RANUNCULUS FLUITANS LAM 1-6
    4 NYMPHOIDES PELTATA (GME 5-6
    4 CALLITRICHE OBTUSANGULA 3-6
    3 SPARGANIUM SIMPLEX HUDS 3-6
    3 POTAMOGETON PUSILLUS L. 3-6
    3 POTAMOGETON GRAMINEUS L 1-6
    3 POTAMOGETON ACUTIFOLIUS 1-6
    3 NAIAS MAJOR ALL.        1-6
    3 CAREX RIPARIA CURT.     1-6
    3 ALISMA NATANS L.        1-6
    3 APIUM INUNDATUM L.      1-6
    3 VERONICA ANAGALLIS L.   1-5
    3 RANUNCULUS TRICHOPHYLLU 1-6
    3 MYRIOPHYLLUM VERTICILLA 4-6
    2 POTAMOGETON X-ZIZI MERT 1-6
    2 POTAMOGETON X-ZIZI MERT 4-6
    2 POTA GRAM VAR. HETEROPH 1-6
    2 POTAMOGETON FLUITANS RO 4-6
    2 POTAMOGETON DENSUS L.   1-6
    2 LEMNA TRISULCA L.       4-6
    2 VERONICA ANAGALLIS L.   2-5
    2 RANUNCULUS FLUITANS LAM 3-6
    2 HOTTONIA PALUSTRIS L.   3-6
    2 MYRIOPHYLLUM ALTERNIFLO 1-6

    2 RORIPA AMPHIBIA (L.) BE 3-6
    1 EQUISETUM LIMOSUM (L.)  1-6
    1 ZANN PALU VAR. PALUSTRI 1-6
    1 ZANNICHELLIA PALUSTRIS  1-6
    1 TYPHA LATIFOLIA L.      1-6
    1 POTAMOGETON TRICHOIDES  1-6
    1 POTAMOGETON TRICHOIDES  4-6
    1 POTAMOGETON RUFESCENS S 1-6
    1 POTAMOGETON PERFOLIATUS 3-6
    1 LEMNA GIBBA L.          1-6
    1 HYDROCHARIS MORSUS-RANA 4-6
    1 ARUNDO PHRAGMITES L.    1-6
    1 SCIRPUS PALUSTRIS L.    1-6
    1 CAREX ELATA ALL.        1-6
    1 OENANTHE FLUVIATILIS CO 1-4
    1 OENANTHE FLUVIATILIS CO 3-4
    1 APIUM NODIFLORUM (L.) L 1-6
    1 TRAPA NATANS L.         4-6
    1 VERO ANAG SUBS AQUATICA 1-5
    1 RANU TRIC VAR. TRICHOPH 1-6
    1 RANUNCULUS FLUITANS LAM 4-6
    1 LYTHRUM SALICARIA L.    1-6
    1 UTRICULARIA VULGARIS L. 3-6
    1 UTRICULARIA MAJOR SCHMI 3-6
    1 NASTURTIUM OFFICINALE R 1-6
    1 CERATOPHYLLUM SUBMERSUM 1-6
    1 CALLITRICHE STAGNALIS S 1-6