be, arr. tongeren, fraxinus excelsior, quercus robur, corylus avellana, acer pseudoplatanus, lonicera periclymenum, sambucus nigra, hedera helix, urtica dioica, geum urbanum, polygonatum multiflorum, glechoma hederacea, sorbus aucuparia, crataegus monogyna, alnus glutinosa, arum maculatum, circaea lutetiana, prunus avium, galium aparine, athyrium filix-femina, primula elatior, betula pubescens, adoxa moschatellina, anemone nemorosa, ficaria verna, betula pendula, ribes rubrum, fagus sylvatica, silene dioica, dryopteris carthusiana, carpinus betulus, poa trivialis, viburnum opulus, lamium galeobdolon, angelica sylvestris, dryopteris dilatata, filipendula ulmaria, geranium robertianum, dryopteris filix-mas, cornus sanguinea, deschampsia cespitosa, stachys sylvatica, moehringia trinervia, galeopsis tetrahit, heracleum sphondylium, ranunculus repens, carex sylvatica, ulmus minor, paris quadrifolia, frangula alnus, populus canadensis