be, arr. leuven, quercus robur, lonicera periclymenum, corylus avellana, alnus glutinosa, fraxinus excelsior, castanea sativa, sorbus aucuparia, acer pseudoplatanus, quercus rubra, sambucus nigra, prunus serotina, urtica dioica, juncus effusus, frangula alnus, athyrium filix-femina, polygonatum multiflorum, fagus sylvatica, hedera helix, lamium galeobdolon, ranunculus repens, betula pendula, populus canadensis, filipendula ulmaria, heracleum sphondylium, prunus avium, molinia caerulea, anemone nemorosa, holcus lanatus, cardamine pratensis, lysimachia vulgaris, viburnum opulus, glechoma hederacea, galium aparine, angelica sylvestris, poa trivialis, ribes rubrum, lythrum salicaria, betula pubescens, dryopteris dilatata, primula elatior, alnus incana, carpinus betulus, pinus sylvestris, dryopteris carthusiana, crataegus monogyna, teucrium scorodonia, potentilla indica, cirsium palustre, ficaria verna, iris pseudacorus