gb, east riding of yorkshire, ranunculus repens, persicaria amphibia, phalaris arundinacea, phragmites australis, agrostis stolonifera, iris pseudacorus, galium palustre, epilobium hirsutum, glyceria maxima, poa trivialis, carex riparia, urtica dioica, lycopus europaeus, calystegia sepium, eleocharis palustris, cirsium arvense, filipendula ulmaria, lythrum salicaria, solanum dulcamara, rumex crispus, sparganium erectum, myosotis scorpioides, carex disticha, rumex hydrolapathum, cardamine pratensis, alisma plantago-aquatica, rumex conglomeratus, lemna minor, argentina anserina, typha latifolia, stachys palustris, juncus inflexus, equisetum palustre, equisetum fluviatile, mentha aquatica, helosciadium nodiflorum, thalictrum flavum, ranunculus sceleratus, myosotis laxa, lysimachia vulgaris, impatiens capensis, juncus effusus, caltha palustris, oenanthe fistulosa, symphytum officinale, galium aparine, scutellaria galericulata, vicia cracca, carex hirta, bolboschoenus maritimus