gb, barnsley, doncaster and rotherham, cirsium arvense, capsella bursa-pastoris, stellaria media, galium aparine, convolvulus arvensis, veronica persica, chenopodium album, viola arvensis, fallopia convolvulus, papaver rhoeas, polygonum aviculare, lysimachia arvensis, senecio vulgaris, tripleurospermum inodorum, lamium purpureum, elymus repens, poa annua, urtica dioica, rumex crispus, alopecurus myosuroides, lolium perenne, matricaria discoidea, sonchus asper, triticum aestivum, plantago major, myosotis arvensis, sinapis arvensis, geranium dissectum, heracleum sphondylium, raphanus raphanistrum, ranunculus repens, vicia sativa, persicaria maculosa, sonchus oleraceus, euphorbia helioscopia, bromus sterilis, sonchus arvensis, avena fatua, trifolium repens, rumex obtusifolius, matricaria chamomilla, vicia hirsuta, anthriscus sylvestris, plantago lanceolata, atriplex patula, dactylis glomerata, lamium amplexicaule, veronica hederifolia, poa trivialis, achillea millefolium