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