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