be, arr. halle-vilvoorde, quercus robur, lonicera periclymenum, corylus avellana, quercus rubra, castanea sativa, sorbus aucuparia, acer pseudoplatanus, prunus serotina, betula pendula, frangula alnus, polygonatum multiflorum, fraxinus excelsior, sambucus nigra, hedera helix, fagus sylvatica, dryopteris carthusiana, dryopteris dilatata, anemone nemorosa, betula pubescens, teucrium scorodonia, athyrium filix-femina, pteridium aquilinum, prunus avium, carpinus betulus, alnus glutinosa, convallaria majalis, molinia caerulea, crataegus monogyna, lamium galeobdolon, vaccinium myrtillus, hyacinthoides non-scripta, holcus mollis, urtica dioica, glechoma hederacea, pinus sylvestris, luzula pilosa, ilex aquifolium, maianthemum bifolium, populus tremula, populus canadensis, ribes rubrum, viburnum opulus, carex pilulifera, geum urbanum, juncus effusus, avenella flexuosa, deschampsia flexuosa, ficaria verna, salix caprea, moehringia trinervia