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