gb, hartlepool and stockton-on-tees, jacobaea vulgaris, cirsium arvense, rubus fruticosus, vicia sativa, cerastium fontanum, urtica dioica, plantago lanceolata, senecio vulgaris, heracleum sphondylium, taraxacum officinale, achillea millefolium, capsella bursa-pastoris, senecio squalidus, galium aparine, dipsacus fullonum, cirsium vulgare, geranium molle, sonchus oleraceus, stellaria media, sisymbrium officinale, rumex crispus, medicago lupulina, centaurea nigra, helminthotheca echioides, silene latifolia, lamium album, reseda luteola, trifolium repens, dactylis glomerata, bellis perennis, papaver rhoeas, hordeum murinum, matricaria discoidea, geranium pratense, poa annua, tripleurospermum inodorum, melilotus officinalis, epilobium hirsutum, sonchus asper, arctium minus, lolium perenne, arrhenatherum elatius, anthriscus sylvestris, centranthus ruber, vicia hirsuta, lamium purpureum, trifolium pratense, artemisia vulgaris, malva sylvestris, hippophae rhamnoides