be, arr. nivelles, fraxinus excelsior, quercus robur, acer pseudoplatanus, corylus avellana, glechoma hederacea, urtica dioica, sambucus nigra, arum maculatum, hedera helix, circaea lutetiana, alnus glutinosa, castanea sativa, lamium galeobdolon, hyacinthoides non-scripta, geum urbanum, polygonatum multiflorum, quercus rubra, prunus serotina, crataegus monogyna, carpinus betulus, ribes rubrum, galium aparine, lonicera periclymenum, sorbus aucuparia, ficaria verna, prunus avium, silene dioica, adoxa moschatellina, fagus sylvatica, cornus sanguinea, viburnum opulus, primula elatior, anemone nemorosa, ulmus minor, galanthus nivalis, betula pendula, stachys sylvatica, allium ursinum, heracleum sphondylium, filipendula ulmaria, athyrium filix-femina, geranium robertianum, prunus padus, humulus lupulus, dryopteris carthusiana, acer campestre, euonymus europaeus, poa trivialis, alnus incana, dryopteris filix-mas