gb, hartlepool and stockton-on-tees, jacobaea vulgaris, cirsium arvense, heracleum sphondylium, urtica dioica, rubus fruticosus, plantago lanceolata, cerastium fontanum, achillea millefolium, rumex crispus, senecio vulgaris, galium aparine, vicia sativa, cirsium vulgare, senecio squalidus, sonchus oleraceus, taraxacum officinale, centaurea nigra, sonchus arvensis, hippophae rhamnoides, dactylis glomerata, geranium molle, silene latifolia, helminthotheca echioides, arrhenatherum elatius, medicago lupulina, dipsacus fullonum, trifolium repens, bellis perennis, sonchus asper, centranthus ruber, sisymbrium officinale, artemisia vulgaris, reseda luteola, stellaria media, capsella bursa-pastoris, anthriscus sylvestris, lolium perenne, arctium minus, lamium album, galium verum, tussilago farfara, tripleurospermum inodorum, lotus corniculatus, poa annua, geranium pratense, ranunculus repens, holcus lanatus, epilobium hirsutum, tripleurospermum maritimum, leymus arenarius