be, arr. leuven, quercus robur, corylus avellana, lonicera periclymenum, acer pseudoplatanus, sorbus aucuparia, fraxinus excelsior, prunus serotina, quercus rubra, sambucus nigra, polygonatum multiflorum, anemone nemorosa, hedera helix, betula pendula, castanea sativa, athyrium filix-femina, alnus glutinosa, frangula alnus, dryopteris carthusiana, fagus sylvatica, urtica dioica, glechoma hederacea, carpinus betulus, prunus avium, populus canadensis, adoxa moschatellina, ficaria verna, geum urbanum, crataegus monogyna, lamium galeobdolon, dryopteris dilatata, betula pubescens, ribes rubrum, galeopsis tetrahit, moehringia trinervia, convallaria majalis, viburnum opulus, primula elatior, holcus mollis, teucrium scorodonia, galium aparine, angelica sylvestris, pteridium aquilinum, maianthemum bifolium, juncus effusus, filipendula ulmaria, arum maculatum, silene dioica, circaea lutetiana, heracleum sphondylium, poa trivialis