be, arr. antwerpen, prunus serotina, quercus rubra, juncus tenuis, pinus sylvestris, amelanchier lamarckii, bidens frondosa, rhododendron ponticum, erigeron canadensis, crassula helmsii, molinia caerulea, calluna vulgaris, castanea sativa, juncus canadensis, betula pendula, quercus robur, pinus nigra, geum macrophyllum, ceratocapnos claviculata, erica tetralix, avenella flexuosa, silene coronaria, claytonia perfoliata, potentilla indica, senecio inaequidens, galinsoga quadriradiata, lepidium didymum, frangula alnus, sorbus aucuparia, epilobium ciliatum, digitaria sanguinalis, deschampsia flexuosa, pilosella aurantiaca, oxalis stricta, echinochloa crus-galli, lepidium virginicum, pinus strobus, potentilla recta, robinia pseudoacacia, rumex acetosella, claytonia sibirica, juncus bulbosus, vaccinium myrtillus, erigeron sumatrensis, pseudotsuga menziesii, oenothera glazioviana, agrostis capillaris, oenothera deflexa, dryopteris dilatata, rumex angiocarpus, matricaria discoidea