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