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