be, arr. leuven, quercus robur, populus canadensis, holcus lanatus, urtica dioica, prunus serotina, ranunculus repens, juncus effusus, alnus glutinosa, agrostis capillaris, sorbus aucuparia, quercus rubra, lonicera periclymenum, betula pendula, galeopsis tetrahit, angelica sylvestris, poa trivialis, filipendula ulmaria, galium aparine, lysimachia vulgaris, holcus mollis, frangula alnus, glechoma hederacea, sambucus nigra, cirsium palustre, rumex acetosa, cirsium arvense, arrhenatherum elatius, fraxinus excelsior, heracleum sphondylium, dryopteris carthusiana, phalaris arundinacea, molinia caerulea, cardamine pratensis, corylus avellana, phragmites australis, betula pubescens, humulus lupulus, alopecurus pratensis, anthoxanthum odoratum, stellaria graminea, athyrium filix-femina, ranunculus acris, solanum dulcamara, symphytum officinale, iris pseudacorus, lycopus europaeus, pinus sylvestris, dryopteris dilatata, acer pseudoplatanus, lythrum salicaria