gb, south west wales, cirsium arvense, heracleum sphondylium, urtica dioica, raphanus raphanistrum, matricaria discoidea, stellaria media, galium aparine, polygonum aviculare, lysimachia arvensis, ranunculus repens, rumex crispus, poa annua, convolvulus arvensis, chenopodium album, trifolium repens, capsella bursa-pastoris, senecio vulgaris, veronica persica, lolium perenne, geranium dissectum, sonchus arvensis, plantago major, sonchus asper, sisymbrium officinale, beta vulgaris, plantago lanceolata, achillea millefolium, dactylis glomerata, lamium purpureum, persicaria maculosa, cirsium vulgare, agrostis stolonifera, hordeum vulgare, elymus repens, helminthotheca echioides, tripleurospermum inodorum, anthriscus sylvestris, holcus lanatus, triticum aestivum, oenanthe crocata, sonchus oleraceus, arrhenatherum elatius, jacobaea vulgaris, potentilla reptans, lamium album, vicia sativa, sinapis arvensis, geranium molle, epilobium hirsutum, silene latifolia