be, arr. antwerpen, quercus robur, prunus serotina, betula pendula, sorbus aucuparia, lonicera periclymenum, acer pseudoplatanus, urtica dioica, quercus rubra, sambucus nigra, agrostis capillaris, glechoma hederacea, holcus lanatus, populus canadensis, dryopteris dilatata, teucrium scorodonia, dryopteris carthusiana, castanea sativa, corylus avellana, betula pubescens, crataegus monogyna, fraxinus excelsior, frangula alnus, juncus effusus, moehringia trinervia, calamagrostis epigejos, alnus glutinosa, ranunculus repens, pinus sylvestris, cirsium arvense, poa trivialis, holcus mollis, salix caprea, galium aparine, fagus sylvatica, molinia caerulea, rubus caesius, geum urbanum, galeopsis tetrahit, populus canescens, eupatorium cannabinum, epipactis helleborine, hedera helix, populus tremula, dryopteris filix-mas, agrostis stolonifera, athyrium filix-femina, pinus nigra, viola riviniana, rumex angiocarpus, deschampsia flexuosa