gb, east riding of yorkshire, cirsium arvense, galium aparine, stellaria media, trifolium repens, lysimachia arvensis, urtica dioica, capsella bursa-pastoris, ranunculus repens, polygonum aviculare, sonchus arvensis, rumex crispus, lolium perenne, poa annua, sonchus asper, dactylis glomerata, veronica persica, plantago major, plantago lanceolata, elymus repens, matricaria discoidea, fallopia convolvulus, myosotis arvensis, tripleurospermum inodorum, chenopodium album, agrostis stolonifera, senecio vulgaris, medicago lupulina, heracleum sphondylium, papaver rhoeas, arrhenatherum elatius, poa trivialis, holcus lanatus, persicaria maculosa, achillea millefolium, vicia sativa, convolvulus arvensis, sinapis arvensis, viola arvensis, cirsium vulgare, lamium purpureum, sonchus oleraceus, cerastium fontanum, atriplex patula, poa pratensis, trifolium pratense, argentina anserina, jacobaea vulgaris, geranium dissectum, festuca rubra, equisetum arvense