gb, north & west norfolk, hordeum vulgare, vicia faba, triticum aestivum, panicum miliaceum, brassica napus, convolvulus arvensis, cirsium arvense, geranium dissectum, phacelia tanacetifolia, heracleum sphondylium, fagopyrum esculentum, polygonum aviculare, galium aparine, urtica dioica, dactylis glomerata, zea mays, senecio vulgaris, avena sativa, sorghum bicolor, potentilla reptans, lolium perenne, plantago lanceolata, achillea millefolium, ranunculus repens, capsella bursa-pastoris, raphanus raphanistrum, chenopodium album, trifolium repens, papaver rhoeas, sonchus asper, vicia sativa, viola arvensis, bromus hordeaceus, arrhenatherum elatius, poa trivialis, cirsium vulgare, veronica persica, plantago major, linaria vulgaris, trifolium incarnatum, helminthotheca echioides, beta vulgaris, lamium purpureum, silene latifolia, prunus spinosa, rumex crispus, euphorbia helioscopia, artemisia vulgaris, holcus lanatus, matricaria chamomilla