be, arr. leuven, quercus robur, betula pendula, quercus rubra, lonicera periclymenum, prunus serotina, sorbus aucuparia, fagus sylvatica, castanea sativa, frangula alnus, pinus sylvestris, acer pseudoplatanus, teucrium scorodonia, molinia caerulea, avenella flexuosa, dryopteris carthusiana, deschampsia flexuosa, pteridium aquilinum, carex pilulifera, corylus avellana, vaccinium myrtillus, agrostis capillaris, dryopteris dilatata, betula pubescens, holcus mollis, carpinus betulus, juncus effusus, hedera helix, calluna vulgaris, ilex aquifolium, athyrium filix-femina, convallaria majalis, polygonatum multiflorum, sambucus nigra, fraxinus excelsior, quercus petraea, prunus avium, galeopsis tetrahit, luzula pilosa, holcus lanatus, populus tremula, urtica dioica, alnus glutinosa, salix caprea, anemone nemorosa, moehringia trinervia, scrophularia nodosa, cytisus scoparius, maianthemum bifolium, robinia pseudoacacia, dryopteris filix-mas