be, arr. nivelles, quercus robur, lonicera periclymenum, acer pseudoplatanus, corylus avellana, castanea sativa, hedera helix, fraxinus excelsior, polygonatum multiflorum, sambucus nigra, hyacinthoides non-scripta, teucrium scorodonia, sorbus aucuparia, prunus avium, carpinus betulus, fagus sylvatica, betula pendula, crataegus monogyna, arum maculatum, holcus mollis, silene dioica, anemone nemorosa, urtica dioica, pteridium aquilinum, glechoma hederacea, quercus rubra, geum urbanum, galium aparine, lamium galeobdolon, dryopteris filix-mas, adoxa moschatellina, viola riviniana, deschampsia flexuosa, ribes rubrum, frangula alnus, betula pubescens, ilex aquifolium, ficaria verna, avenella flexuosa, heracleum sphondylium, agrostis capillaris, prunus serotina, galeopsis tetrahit, moehringia trinervia, alnus glutinosa, holcus lanatus, poa nemoralis, cornus sanguinea, athyrium filix-femina, ranunculus repens, geranium robertianum