be, arr. leuven, quercus robur, agrostis capillaris, prunus serotina, holcus lanatus, betula pendula, quercus rubra, arrhenatherum elatius, rumex acetosa, holcus mollis, hypericum perforatum, ranunculus repens, achillea millefolium, sorbus aucuparia, stellaria graminea, anthoxanthum odoratum, lonicera periclymenum, cirsium arvense, frangula alnus, rumex angiocarpus, urtica dioica, juncus effusus, tanacetum vulgare, festuca rubra, pinus sylvestris, plantago lanceolata, hieracium umbellatum, galeopsis tetrahit, molinia caerulea, avenella flexuosa, rumex acetosella, deschampsia flexuosa, populus canadensis, ranunculus acris, calluna vulgaris, luzula campestris, hypochaeris radicata, cerastium holosteoides, lolium perenne, poa trivialis, sambucus nigra, trifolium repens, cerastium fontanum, cytisus scoparius, heracleum sphondylium, glechoma hederacea, dactylis glomerata, elymus repens, centaurea jacea, corylus avellana, teucrium scorodonia