gb, durham cc, capsella bursa-pastoris, stellaria media, senecio vulgaris, sisymbrium officinale, poa annua, urtica dioica, matricaria discoidea, cirsium arvense, veronica persica, lamium album, sonchus oleraceus, plantago lanceolata, polygonum aviculare, convolvulus arvensis, papaver rhoeas, lamium purpureum, heracleum sphondylium, lolium perenne, galium aparine, trifolium repens, chenopodium album, achillea millefolium, rumex obtusifolius, lysimachia arvensis, geranium molle, sonchus asper, dactylis glomerata, ranunculus repens, plantago major, vicia sativa, medicago lupulina, geranium dissectum, malva sylvestris, anthriscus sylvestris, rumex crispus, euphorbia helioscopia, trifolium pratense, bromus sterilis, persicaria maculosa, cirsium vulgare, bellis perennis, ballota nigra, veronica arvensis, sinapis arvensis, tripleurospermum inodorum, bromus hordeaceus, cerastium fontanum, jacobaea vulgaris, hordeum murinum, silene latifolia