be, arr. leuven, quercus rubra, prunus serotina, quercus robur, pinus sylvestris, molinia caerulea, silene coronaria, betula pendula, sorbus aucuparia, castanea sativa, frangula alnus, pilosella aurantiaca, juncus tenuis, potentilla indica, calluna vulgaris, amelanchier lamarckii, juncus effusus, agrostis capillaris, rhododendron ponticum, avenella flexuosa, deschampsia flexuosa, holcus lanatus, galinsoga quadriradiata, pinus nigra, erigeron canadensis, oxalis corniculata, claytonia perfoliata, vaccinium myrtillus, bidens frondosa, phytolacca acinosa, dryopteris dilatata, erica tetralix, dryopteris carthusiana, lathyrus latifolius, rumex angiocarpus, rumex acetosella, lonicera periclymenum, geum macrophyllum, carex pilulifera, oxalis stricta, viola wittrockiana, epilobium ciliatum, echinochloa crus-galli, juncus acutiflorus, lepidium didymum, ranunculus repens, robinia pseudoacacia, betula pubescens, agrostis vinealis, hypericum perforatum, lepidium virginicum