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