be, arr. nivelles, fagus sylvatica, castanea sativa, quercus rubra, quercus robur, acer pseudoplatanus, lonicera periclymenum, dryopteris carthusiana, prunus serotina, sorbus aucuparia, athyrium filix-femina, pteridium aquilinum, dryopteris dilatata, betula pendula, ilex aquifolium, corylus avellana, carex pilulifera, teucrium scorodonia, hedera helix, pinus sylvestris, carpinus betulus, vaccinium myrtillus, fraxinus excelsior, juncus effusus, frangula alnus, luzula pilosa, avenella flexuosa, molinia caerulea, quercus petraea, oxalis acetosella, deschampsia flexuosa, anemone nemorosa, convallaria majalis, circaea lutetiana, sambucus nigra, deschampsia cespitosa, carex remota, polygonatum multiflorum, prunus avium, alnus glutinosa, dryopteris filix-mas, lamium galeobdolon, hyacinthoides non-scripta, picea abies, betula pubescens, holcus mollis, carex sylvatica, urtica dioica, milium effusum, plantago subulata, glechoma hederacea