gb, central bedfordshire, capsella bursa-pastoris, cirsium arvense, stellaria media, galium aparine, veronica persica, senecio vulgaris, lysimachia arvensis, chenopodium album, papaver rhoeas, viola arvensis, tripleurospermum inodorum, convolvulus arvensis, poa annua, lamium purpureum, bromus sterilis, polygonum aviculare, sonchus asper, urtica dioica, fallopia convolvulus, sonchus oleraceus, rumex crispus, vicia sativa, myosotis arvensis, matricaria discoidea, sinapis arvensis, plantago major, lolium perenne, medicago lupulina, euphorbia helioscopia, persicaria maculosa, veronica hederifolia, atriplex patula, vicia hirsuta, rumex obtusifolius, lamium amplexicaule, trifolium repens, plantago lanceolata, sonchus arvensis, geranium molle, sisymbrium officinale, avena fatua, alopecurus myosuroides, raphanus raphanistrum, silene latifolia, elymus repens, veronica arvensis, ranunculus repens, centaurea cyanus, geranium dissectum, artemisia vulgaris