be, arr. leuven, quercus robur, prunus serotina, quercus rubra, populus canadensis, sorbus aucuparia, sambucus nigra, acer pseudoplatanus, betula pendula, urtica dioica, lonicera periclymenum, corylus avellana, castanea sativa, glechoma hederacea, fraxinus excelsior, holcus lanatus, frangula alnus, agrostis capillaris, alnus glutinosa, ranunculus repens, dryopteris dilatata, poa trivialis, juncus effusus, crataegus monogyna, dryopteris carthusiana, galium aparine, galeopsis tetrahit, angelica sylvestris, heracleum sphondylium, prunus avium, polygonatum multiflorum, alnus incana, geum urbanum, robinia pseudoacacia, athyrium filix-femina, salix caprea, betula pubescens, ribes rubrum, pinus sylvestris, amelanchier lamarckii, teucrium scorodonia, hedera helix, arrhenatherum elatius, moehringia trinervia, holcus mollis, molinia caerulea, cirsium arvense, viburnum opulus, fagus sylvatica, cardamine pratensis, epipactis helleborine