be, arr. leuven, quercus rubra, quercus robur, prunus serotina, castanea sativa, pinus sylvestris, silene coronaria, betula pendula, agrostis capillaris, sorbus aucuparia, avenella flexuosa, juncus tenuis, erigeron canadensis, deschampsia flexuosa, holcus lanatus, pilosella aurantiaca, calluna vulgaris, rumex angiocarpus, pinus nigra, frangula alnus, rumex acetosella, hypericum perforatum, amelanchier lamarckii, robinia pseudoacacia, galinsoga quadriradiata, potentilla indica, molinia caerulea, vaccinium myrtillus, oxalis corniculata, cytisus scoparius, teucrium scorodonia, lathyrus latifolius, lonicera periclymenum, ranunculus repens, dryopteris dilatata, echinochloa crus-galli, holcus mollis, juncus effusus, oxalis stricta, arrhenatherum elatius, acer pseudoplatanus, senecio inaequidens, urtica dioica, carex pilulifera, fagus sylvatica, achillea millefolium, claytonia perfoliata, dryopteris carthusiana, rhododendron ponticum, salix caprea, cirsium arvense