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