be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, pinus sylvestris, quercus robur, sorbus aucuparia, betula pendula, fagus sylvatica, vaccinium myrtillus, lonicera periclymenum, amelanchier lamarckii, frangula alnus, molinia caerulea, avenella flexuosa, ilex aquifolium, teucrium scorodonia, carex pilulifera, calluna vulgaris, pteridium aquilinum, deschampsia flexuosa, dryopteris dilatata, dryopteris carthusiana, acer pseudoplatanus, pinus nigra, robinia pseudoacacia, rhododendron ponticum, corylus avellana, convallaria majalis, pseudotsuga menziesii, betula pubescens, hedera helix, juncus tenuis, cytisus scoparius, agrostis capillaris, polygonatum multiflorum, maianthemum bifolium, quercus petraea, prunus avium, larix kaempferi, potentilla indica, carpinus betulus, populus tremula, sambucus nigra, holcus mollis, picea abies, salix caprea, silene coronaria, mespilus germanica, plantago subulata, lamium galeobdolon