gb, oxfordshire, cirsium arvense, veronica persica, capsella bursa-pastoris, stellaria media, galium aparine, papaver rhoeas, lysimachia arvensis, convolvulus arvensis, polygonum aviculare, fallopia convolvulus, sonchus asper, sinapis arvensis, urtica dioica, chenopodium album, lolium perenne, senecio vulgaris, viola arvensis, medicago lupulina, matricaria discoidea, heracleum sphondylium, poa annua, geranium dissectum, rumex crispus, myosotis arvensis, sonchus oleraceus, plantago major, alopecurus myosuroides, dactylis glomerata, avena fatua, trifolium repens, plantago lanceolata, lamium purpureum, bromus sterilis, vicia sativa, tripleurospermum inodorum, sonchus arvensis, ranunculus repens, triticum aestivum, anthriscus sylvestris, atriplex patula, cirsium vulgare, euphorbia helioscopia, reseda lutea, centaurea scabiosa, arrhenatherum elatius, persicaria maculosa, elymus repens, trifolium pratense, achillea millefolium, aethusa cynapium