gb, thurrock, sonchus oleraceus, artemisia vulgaris, sisymbrium officinale, senecio vulgaris, diplotaxis tenuifolia, erigeron canadensis, daucus carota, cirsium arvense, chenopodium album, plantago lanceolata, medicago lupulina, polygonum aviculare, achillea millefolium, capsella bursa-pastoris, hordeum murinum, poa annua, melilotus officinalis, melilotus albus, solanum nigrum, reseda lutea, lolium perenne, convolvulus arvensis, papaver rhoeas, plantago major, matricaria discoidea, pastinaca sativa, vicia sativa, malva sylvestris, tripleurospermum inodorum, dactylis glomerata, silene latifolia, sonchus asper, rumex crispus, stellaria media, tanacetum vulgare, linaria vulgaris, reseda luteola, trifolium repens, plantago coronopus, urtica dioica, elymus repens, cirsium vulgare, medicago sativa, geranium molle, raphanus raphanistrum, lactuca serriola, bromus sterilis, sisymbrium altissimum, helminthotheca echioides, erigeron sumatrensis