gb, cambridgeshire cc, cirsium arvense, phragmites australis, urtica dioica, epilobium hirsutum, ranunculus repens, stachys palustris, agrostis stolonifera, lolium perenne, poa trivialis, elymus repens, galium aparine, lamium album, matricaria discoidea, heracleum sphondylium, phalaris arundinacea, sonchus arvensis, rumex crispus, calystegia sepium, dactylis glomerata, trifolium repens, althaea officinalis, glyceria maxima, ranunculus sceleratus, polygonum aviculare, symphytum officinale, persicaria amphibia, anthriscus sylvestris, cotula coronopifolia, holcus lanatus, butomus umbellatus, matricaria chamomilla, capsella bursa-pastoris, persicaria maculosa, artemisia vulgaris, plantago lanceolata, heracleum mantegazzianum, chenopodium album, argentina anserina, tanacetum vulgare, achillea millefolium, pastinaca sativa, solanum dulcamara, cirsium vulgare, plantago major, veronica persica, arrhenatherum elatius, rumex obtusifolius, sisymbrium officinale, poa annua, lemna minor