gb, cambridgeshire cc, papaver rhoeas, lysimachia arvensis, capsella bursa-pastoris, senecio vulgaris, stellaria media, galium aparine, cirsium arvense, veronica persica, tripleurospermum inodorum, sinapis arvensis, sonchus oleraceus, lamium purpureum, polygonum aviculare, chenopodium album, convolvulus arvensis, helminthotheca echioides, sonchus asper, poa annua, atriplex patula, urtica dioica, matricaria discoidea, rumex crispus, medicago lupulina, aethusa cynapium, euphorbia helioscopia, sonchus arvensis, vicia sativa, viola arvensis, sisymbrium officinale, persicaria maculosa, silene latifolia, lolium perenne, fallopia convolvulus, lamium album, bromus sterilis, geranium dissectum, plantago major, artemisia vulgaris, centaurea cyanus, myosotis arvensis, trifolium repens, dipsacus fullonum, plantago lanceolata, raphanus raphanistrum, avena fatua, dactylis glomerata, lamium amplexicaule, rumex obtusifolius, achillea millefolium, malva sylvestris