be, arr. leuven, quercus rubra, prunus serotina, castanea sativa, quercus robur, pinus sylvestris, betula pendula, sorbus aucuparia, dryopteris dilatata, frangula alnus, lonicera periclymenum, molinia caerulea, fagus sylvatica, dryopteris carthusiana, vaccinium myrtillus, teucrium scorodonia, avenella flexuosa, deschampsia flexuosa, pinus nigra, carex pilulifera, acer pseudoplatanus, pteridium aquilinum, calluna vulgaris, corylus avellana, juncus effusus, agrostis capillaris, betula pubescens, sambucus nigra, ilex aquifolium, athyrium filix-femina, robinia pseudoacacia, amelanchier lamarckii, salix caprea, urtica dioica, rhododendron ponticum, holcus lanatus, juncus tenuis, holcus mollis, hedera helix, pseudotsuga menziesii, juncus conglomeratus, convallaria majalis, larix kaempferi, galeopsis tetrahit, cytisus scoparius, polygonatum multiflorum, glechoma hederacea, alnus glutinosa, moehringia trinervia, fraxinus excelsior, luzula pilosa