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