be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, pinus sylvestris, quercus robur, sorbus aucuparia, vaccinium myrtillus, fagus sylvatica, betula pendula, frangula alnus, molinia caerulea, carex pilulifera, pinus nigra, avenella flexuosa, lonicera periclymenum, dryopteris dilatata, teucrium scorodonia, deschampsia flexuosa, pteridium aquilinum, dryopteris carthusiana, pseudotsuga menziesii, calluna vulgaris, rhododendron ponticum, ilex aquifolium, juncus tenuis, amelanchier lamarckii, acer pseudoplatanus, larix kaempferi, picea abies, pinus strobus, betula pubescens, juncus effusus, robinia pseudoacacia, larix decidua, convallaria majalis, quercus petraea, athyrium filix-femina, corylus avellana, potentilla indica, plantago subulata, agrostis capillaris, maianthemum bifolium, hedera helix, luzula pilosa, impatiens parviflora, pinus pinaster, struthiopteris spicant, oxalis stricta, cytisus scoparius, carpinus betulus