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