gb, cambridgeshire cc, agrostis stolonifera, phragmites australis, lemna minor, bolboschoenus maritimus, glyceria fluitans, ranunculus sceleratus, persicaria amphibia, alisma plantago-aquatica, alopecurus geniculatus, stuckenia pectinata, lemna trisulca, ranunculus repens, spirodela polyrhiza, poa trivialis, glyceria maxima, ceratophyllum demersum, poa annua, eleocharis palustris, elodea nuttallii, sparganium erectum, persicaria hydropiper, phalaris arundinacea, elymus repens, butomus umbellatus, polygonum aviculare, potamogeton natans, trifolium repens, potamogeton pusillus, lolium perenne, zannichellia palustris, sagittaria sagittifolia, rumex crispus, myriophyllum spicatum, cirsium arvense, elodea canadensis, lemna gibba, persicaria maculosa, atriplex prostrata, persicaria lapathifolia, juncus articulatus, hydrocharis morsus-ranae, plantago major, argentina anserina, stellaria media, equisetum fluviatile, potamogeton trichoides, potamogeton crispus, juncus bufonius, ranunculus circinatus, myosotis scorpioides