be, arr. leuven, quercus robur, betula pendula, frangula alnus, sorbus aucuparia, alnus glutinosa, urtica dioica, lonicera periclymenum, prunus serotina, holcus lanatus, quercus rubra, betula pubescens, lysimachia vulgaris, dryopteris carthusiana, juncus effusus, sambucus nigra, molinia caerulea, fraxinus excelsior, agrostis capillaris, eupatorium cannabinum, galium aparine, solanum dulcamara, dryopteris dilatata, cirsium palustre, phragmites australis, corylus avellana, glechoma hederacea, poa trivialis, ranunculus repens, populus canadensis, humulus lupulus, crataegus monogyna, galeopsis tetrahit, lycopus europaeus, acer pseudoplatanus, salix cinerea, pinus sylvestris, angelica sylvestris, cirsium arvense, lythrum salicaria, filipendula ulmaria, calystegia sepium, athyrium filix-femina, iris pseudacorus, castanea sativa, holcus mollis, populus tremula, viburnum opulus, galium palustre, symphytum officinale, geum urbanum