be, arr. leuven, quercus robur, sambucus nigra, acer pseudoplatanus, fraxinus excelsior, corylus avellana, sorbus aucuparia, urtica dioica, alnus glutinosa, lonicera periclymenum, glechoma hederacea, populus canadensis, prunus serotina, galium aparine, quercus rubra, hedera helix, dryopteris dilatata, athyrium filix-femina, crataegus monogyna, dryopteris carthusiana, geum urbanum, poa trivialis, silene dioica, polygonatum multiflorum, ficaria verna, filipendula ulmaria, ranunculus repens, galeopsis tetrahit, ribes rubrum, juncus effusus, anemone nemorosa, humulus lupulus, circaea lutetiana, betula pendula, adoxa moschatellina, angelica sylvestris, prunus avium, frangula alnus, moehringia trinervia, castanea sativa, fagus sylvatica, betula pubescens, viburnum opulus, heracleum sphondylium, lamium galeobdolon, deschampsia cespitosa, geranium robertianum, holcus lanatus, carex remota, prunus padus, carpinus betulus