gb, gloucestershire, cirsium arvense, convolvulus arvensis, galium aparine, urtica dioica, capsella bursa-pastoris, stellaria media, papaver rhoeas, lysimachia arvensis, geranium dissectum, polygonum aviculare, heracleum sphondylium, veronica persica, tripleurospermum inodorum, chenopodium album, ranunculus repens, lolium perenne, matricaria discoidea, helminthotheca echioides, rumex crispus, lamium purpureum, senecio vulgaris, bromus sterilis, sonchus asper, viola arvensis, sinapis arvensis, plantago major, anthriscus sylvestris, poa annua, vicia sativa, lamium album, trifolium repens, dactylis glomerata, elymus repens, fallopia convolvulus, sonchus oleraceus, plantago lanceolata, persicaria maculosa, triticum aestivum, rumex obtusifolius, sisymbrium officinale, myosotis arvensis, raphanus raphanistrum, cirsium vulgare, sonchus arvensis, rubus fruticosus, poa trivialis, potentilla reptans, alopecurus myosuroides, arrhenatherum elatius, achillea millefolium