be, arr. leuven, hordeum vulgare, triticum aestivum, brassica napus, vicia faba, galium aparine, avena sativa, viola arvensis, veronica persica, fallopia convolvulus, cirsium arvense, papaver rhoeas, beta vulgaris, mercurialis annua, convolvulus arvensis, senecio vulgaris, sinapis arvensis, polygonum aviculare, chenopodium album, panicum miliaceum, lysimachia arvensis, capsella bursa-pastoris, phacelia tanacetifolia, euphorbia helioscopia, raphanus raphanistrum, alopecurus myosuroides, reseda lutea, matricaria chamomilla, sonchus asper, aethusa cynapium, zea mays, fagopyrum esculentum, lathyrus tuberosus, fumaria officinalis, heracleum sphondylium, lamium purpureum, urtica dioica, sonchus arvensis, tripleurospermum inodorum, artemisia vulgaris, avena fatua, geranium dissectum, sinapis alba, stellaria media, lathyrus oleraceus, myosotis arvensis, kickxia spuria, linaria vulgaris, centaurea cyanus, silene latifolia, sorghum bicolor