be, arr. nivelles, hordeum vulgare, triticum aestivum, vicia faba, phacelia tanacetifolia, brassica napus, galium aparine, avena sativa, fagopyrum esculentum, hedera helix, zea mays, castanea sativa, lonicera periclymenum, panicum miliaceum, heracleum sphondylium, matricaria chamomilla, viola arvensis, trifolium incarnatum, polygonum aviculare, beta vulgaris, urtica dioica, chenopodium album, corylus avellana, veronica persica, fagus sylvatica, raphanus raphanistrum, sinapis alba, cirsium arvense, sambucus nigra, sonchus asper, senecio vulgaris, fraxinus excelsior, prunus avium, ilex aquifolium, quercus robur, carpinus betulus, ranunculus repens, centaurea cyanus, lamium purpureum, hyacinthoides non-scripta, plantago major, galeopsis tetrahit, gnaphalium uliginosum, holcus mollis, arum maculatum, dactylis glomerata, capsella bursa-pastoris, acer pseudoplatanus, mercurialis annua, holcus lanatus, prunus spinosa