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