be, arr. leuven, quercus robur, prunus serotina, quercus rubra, holcus lanatus, agrostis capillaris, ranunculus repens, castanea sativa, arrhenatherum elatius, juncus effusus, silene coronaria, rumex acetosa, betula pendula, urtica dioica, sorbus aucuparia, pinus sylvestris, frangula alnus, holcus mollis, heracleum sphondylium, cirsium arvense, lolium perenne, amelanchier lamarckii, lonicera periclymenum, achillea millefolium, poa trivialis, pilosella aurantiaca, tanacetum vulgare, stellaria graminea, ranunculus acris, anthoxanthum odoratum, galinsoga quadriradiata, cerastium fontanum, molinia caerulea, juncus tenuis, rumex angiocarpus, plantago lanceolata, populus canadensis, dactylis glomerata, rumex acetosella, alnus glutinosa, robinia pseudoacacia, corylus avellana, festuca rubra, trifolium repens, galeopsis tetrahit, echinochloa crus-galli, sambucus nigra, hypericum perforatum, bidens frondosa, cytisus scoparius, alopecurus pratensis