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