be, arr. leuven, castanea sativa, quercus robur, quercus rubra, prunus serotina, betula pendula, pinus sylvestris, sorbus aucuparia, lonicera periclymenum, calluna vulgaris, frangula alnus, teucrium scorodonia, agrostis capillaris, avenella flexuosa, deschampsia flexuosa, molinia caerulea, carex pilulifera, silene coronaria, vaccinium myrtillus, fagus sylvatica, robinia pseudoacacia, cytisus scoparius, pteridium aquilinum, rumex angiocarpus, holcus lanatus, holcus mollis, rumex acetosella, dryopteris dilatata, corylus avellana, acer pseudoplatanus, amelanchier lamarckii, hypericum perforatum, hieracium umbellatum, juncus effusus, salix caprea, juncus tenuis, pilosella aurantiaca, betula pubescens, sambucus nigra, dryopteris carthusiana, ilex aquifolium, hedera helix, festuca filiformis, rhododendron ponticum, pinus nigra, hypochaeris radicata, luzula campestris, prunus avium, polygonatum multiflorum, anthoxanthum odoratum, erigeron canadensis