be, arr. leuven, quercus robur, urtica dioica, acer pseudoplatanus, populus canadensis, prunus serotina, fraxinus excelsior, sambucus nigra, glechoma hederacea, sorbus aucuparia, quercus rubra, alnus glutinosa, betula pendula, lonicera periclymenum, corylus avellana, galeopsis tetrahit, juncus effusus, galium aparine, ranunculus repens, frangula alnus, dryopteris carthusiana, poa trivialis, crataegus monogyna, holcus lanatus, athyrium filix-femina, dryopteris dilatata, geum urbanum, moehringia trinervia, agrostis capillaris, symphytum officinale, betula pubescens, ribes rubrum, lysimachia vulgaris, cirsium arvense, angelica sylvestris, phragmites australis, heracleum sphondylium, castanea sativa, hedera helix, filipendula ulmaria, alnus incana, cirsium palustre, eupatorium cannabinum, salix caprea, molinia caerulea, scrophularia nodosa, lycopus europaeus, rubus caesius, fagus sylvatica, circaea lutetiana, viburnum opulus