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