gb, cambridgeshire cc, phragmites australis, spirodela polyrhiza, lemna minor, phalaris arundinacea, glyceria maxima, epilobium hirsutum, agrostis stolonifera, urtica dioica, stuckenia pectinata, ceratophyllum demersum, calystegia sepium, lemna trisulca, butomus umbellatus, persicaria amphibia, hydrocharis morsus-ranae, cirsium arvense, sparganium erectum, poa trivialis, solanum dulcamara, nuphar lutea, stachys palustris, ranunculus repens, lycopus europaeus, elymus repens, alisma plantago-aquatica, elodea nuttallii, sagittaria sagittifolia, rorippa amphibia, lythrum salicaria, lemna gibba, iris pseudacorus, typha angustifolia, rumex hydrolapathum, symphytum officinale, myriophyllum spicatum, dactylis glomerata, typha latifolia, galium aparine, lolium perenne, myosotis scorpioides, glyceria fluitans, ranunculus sceleratus, bolboschoenus maritimus, glechoma hederacea, argentina anserina, carex riparia, potamogeton pusillus, elodea canadensis, trifolium repens, eupatorium cannabinum