be, arr. nivelles, triticum aestivum, hordeum vulgare, trifolium incarnatum, heracleum sphondylium, galium aparine, avena sativa, veronica persica, raphanus raphanistrum, chenopodium album, centaurea cyanus, polygonum aviculare, ranunculus repens, dactylis glomerata, lolium perenne, viola arvensis, capsella bursa-pastoris, convolvulus arvensis, urtica dioica, vicia hirsuta, cirsium arvense, phacelia tanacetifolia, matricaria chamomilla, achillea millefolium, arrhenatherum elatius, brassica napus, artemisia vulgaris, plantago major, matricaria discoidea, quercus robur, papaver rhoeas, trifolium repens, sinapis alba, zea mays, lamium purpureum, sisymbrium officinale, vicia sativa, sonchus asper, fagopyrum esculentum, lapsana communis, beta vulgaris, holcus lanatus, euphorbia helioscopia, poa trivialis, sambucus nigra, poa annua, stellaria media, echinochloa crus-galli, elymus repens, plantago lanceolata, tanacetum vulgare