FRQ
   60 POLYGONUM AMPHIBIUM L.  1-6
   37 MYRIOPHYLLUM SPICATUM L 1-6
   26 NUPHAR LUTEUM SM.       1-6
   25 POLYGONUM AMPHIBIUM L.  2-6
   25 NYMPHAEA ALBA L.        1-6
   25 CERATOPHYLLUM DEMERSUM  1-6
   23 POTAMOGETON CRISPUS L.  1-6
   23 HELODEA CANADENSIS RICH 1-6
   21 POTAMOGETON NATANS L.   1-6
   17 POTAMOGETON LUCENS L.   1-6
   14 RANUNCULUS CIRCINATUS S 1-6
   14 MYRIOPHYLLUM VERTICILLA 1-6
   12 LEMNA MINOR L.          1-6
   10 SCIRPUS LACUSTRIS L.    1-6
   10 MYRIOPHYLLUM SPICATUM L 4-6
    9 HYDROCHARIS MORSUS-RANA 1-6
    9 SAGITTARIA SAGITTIFOLIA 1-6
    8 SPIRODELA POLYRRHIZA (L 1-6
    7 POTAMOGETON PECTINATUS  1-6
    7 NUPHAR LUTEUM SM.       4-6
    6 POTAMOGETON PUSILLUS L. 1-6

    6 NYMPHAEA ALBA L.        5-6
    5 SPARGANIUM SIMPLEX HUDS 1-6
    5 POTAMOGETON NATANS L.   4-6
    5 LEMNA TRISULCA L.       1-6
    5 HOTTONIA PALUSTRIS L.   1-6
    5 UTRICULARIA VULGARIS L. 1-6
    5 HIPPURIS VULGARIS L.    1-6
    4 POTAMOGETON OBTUSIFOLIU 1-6
    4 POTAMOGETON CRISPUS L.  2-6
    4 POTAMOGETON CRISPUS L.  3-6
    4 LEMNA MINOR L.          3-6
    4 HELODEA CANADENSIS RICH 4-6
    4 TRAPA NATANS L.         1-6
    4 RANUNCULUS CIRCINATUS S 3-6
    4 NYMPHOIDES PELTATA (GME 1-6
    4 CALLITRICHE OBTUSANGULA 1-6
    3 POTAMOGETON MUCRONATUS  1-5
    3 POTAMOGETON LUCENS L.   4-6
    3 SPIRODELA POLYRRHIZA (L 3-6
    3 GLYCERIA ALTISSIMA (MOE 1-6
    3 ALISMA PLANTAGO L.      1-6

    3 RANUNCULUS AQUATILIS L. 1-6
    3 RORIPA AMPHIBIA (L.) BE 1-6
    3 CERATOPHYLLUM DEMERSUM  4-6
    2 SPARGANIUM RAMOSUM CURT 1-6
    2 POTAMOGETON X-ZIZI MERT 1-6
    2 POTAMOGETON X-ZIZI MERT 4-6
    2 POTAMOGETON PUSILLUS L. 3-6
    2 GLYCERIA FLUITANS (L.)  1-6
    2 BUTOMUS UMBELLATUS L.   1-6
    2 HOTTONIA PALUSTRIS L.   3-6
    2 NYMPHOIDES PELTATA (GME 5-6
    2 CALLITRICHE OBTUSANGULA 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 PERFOLIATUS 1-6
    1 POTAMOGETON PECTINATUS  4-6
    1 POTAMOGETON FLUITANS RO 1-6
    1 POTAMOGETON FLUITANS RO 4-6
    1 POTAMOGETON DENSUS L.   1-6

    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 HYDROCHARIS MORSUS-RANA 4-6
    1 ARUNDO PHRAGMITES L.    1-6
    1 SCIRPUS PALUSTRIS L.    1-6
    1 SAGITTARIA SAGITTIFOLIA 3-6
    1 ALISMA PLANTAGO L.      2-6
    1 ALISMA NATANS L.        1-6
    1 SIUM ERECTUM HUDSON     1-6
    1 OENANTHE PHELLANDRIUM ( 1-6
    1 OENANTHE FLUVIATILIS CO 1-4
    1 OENANTHE FLUVIATILIS CO 3-4
    1 TRAPA NATANS L.         4-6
    1 RANU TRIC VAR. TRICHOPH 1-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 UTRICULARIA VULGARIS L. 3-6
    1 UTRICULARIA MAJOR SCHMI 1-6
    1 UTRICULARIA MAJOR SCHMI 3-6
    1 HIPPURIS VULGARIS L.    3-6
    1 MYRIOPHYLLUM VERTICILLA 4-6
    1 NASTURTIUM OFFICINALE R 1-6