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