be, arr. leuven, quercus robur, urtica dioica, sambucus nigra, galium aparine, glechoma hederacea, crataegus monogyna, holcus lanatus, fraxinus excelsior, poa trivialis, acer pseudoplatanus, sorbus aucuparia, alnus glutinosa, cirsium arvense, betula pendula, galeopsis tetrahit, rubus caesius, agrostis capillaris, ranunculus repens, lonicera periclymenum, prunus serotina, solanum dulcamara, arrhenatherum elatius, populus canadensis, humulus lupulus, geum urbanum, phragmites australis, dactylis glomerata, heracleum sphondylium, calystegia sepium, corylus avellana, moehringia trinervia, elymus repens, anthriscus sylvestris, hedera helix, dryopteris dilatata, silene dioica, rosa blondaeana, phalaris arundinacea, rosa canina, frangula alnus, stellaria media, dryopteris carthusiana, eupatorium cannabinum, geranium robertianum, betula pubescens, ribes rubrum, agrostis stolonifera, symphytum officinale, prunus padus, quercus rubra