be, arr. halle-vilvoorde, quercus robur, fagus sylvatica, lonicera periclymenum, sorbus aucuparia, castanea sativa, pteridium aquilinum, betula pendula, frangula alnus, dryopteris carthusiana, carex pilulifera, acer pseudoplatanus, quercus rubra, vaccinium myrtillus, teucrium scorodonia, athyrium filix-femina, prunus serotina, avenella flexuosa, deschampsia flexuosa, corylus avellana, molinia caerulea, juncus effusus, carpinus betulus, dryopteris dilatata, ilex aquifolium, betula pubescens, hedera helix, holcus mollis, pinus sylvestris, agrostis capillaris, fraxinus excelsior, oxalis acetosella, anemone nemorosa, luzula pilosa, alnus glutinosa, calluna vulgaris, polygonatum multiflorum, quercus petraea, galeopsis tetrahit, convallaria majalis, maianthemum bifolium, holcus lanatus, sambucus nigra, urtica dioica, scrophularia nodosa, carex remota, rubus idaeus, lamium galeobdolon, circaea lutetiana, deschampsia cespitosa, dryopteris filix-mas