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