be, arr. nivelles, hyacinthoides non-scripta, castanea sativa, rhododendron ponticum, circaea lutetiana, fraxinus excelsior, acer pseudoplatanus, arum maculatum, quercus robur, hedera helix, quercus rubra, allium ursinum, glechoma hederacea, fagus sylvatica, geum urbanum, sambucus nigra, silene dioica, urtica dioica, corylus avellana, lonicera periclymenum, lamium galeobdolon, ilex aquifolium, lathraea clandestina, alnus glutinosa, polygonatum multiflorum, plantago subulata, carpinus betulus, impatiens parviflora, ribes rubrum, stachys sylvatica, geranium robertianum, galium aparine, prunus serotina, ficaria verna, potentilla indica, sorbus aucuparia, anemone nemorosa, ajuga reptans, prunus padus, prunus avium, crataegus monogyna, euonymus europaeus, acer campestre, arum italicum, aesculus hippocastanum, adoxa moschatellina, athyrium filix-femina, humulus lupulus, galanthus nivalis, chrysosplenium oppositifolium, iris pseudacorus