be, arr. maaseik, oxalis corniculata, silene coronaria, pilosella aurantiaca, castanea sativa, phytolacca acinosa, claytonia perfoliata, potentilla indica, viola wittrockiana, galinsoga quadriradiata, quercus rubra, prunus serotina, lepidium didymum, echinochloa crus-galli, lathyrus latifolius, quercus robur, erigeron sumatrensis, geranium macrorrhizum, geranium pyrenaicum, erigeron canadensis, rhododendron ponticum, cymbalaria muralis, setaria helvola, amelanchier lamarckii, veronica persica, nicandra physalodes, calluna vulgaris, molinia caerulea, robinia pseudoacacia, sorbus aucuparia, papaver somniferum, euphorbia lathyris, oxalis stricta, betula pendula, pinus sylvestris, digitaria sanguinalis, lepidium virginicum, juncus tenuis, matricaria discoidea, phacelia tanacetifolia, pentaglottis sempervirens, acer pseudoplatanus, trifolium incarnatum, centaurea cyanus, agrostis capillaris, frangula alnus, muscari armeniacum, tanacetum parthenium, eschscholzia californica, lonicera periclymenum, arum italicum