be, arr. leuven, betula pendula, quercus robur, agrostis capillaris, holcus lanatus, teucrium scorodonia, prunus serotina, quercus rubra, hypericum perforatum, cirsium arvense, pinus sylvestris, castanea sativa, urtica dioica, ranunculus repens, salix caprea, juncus effusus, rumex angiocarpus, acer pseudoplatanus, sorbus aucuparia, achillea millefolium, holcus mollis, rumex acetosella, luzula campestris, juncus tenuis, prunella vulgaris, cytisus scoparius, glechoma hederacea, trifolium repens, jacobaea vulgaris, juncus conglomeratus, lonicera periclymenum, arrhenatherum elatius, fagus sylvatica, avenella flexuosa, calamagrostis epigejos, cirsium vulgare, carex pilulifera, calluna vulgaris, pteridium aquilinum, plantago lanceolata, stellaria graminea, festuca rubra, cerastium fontanum, sambucus nigra, deschampsia flexuosa, anthoxanthum odoratum, cerastium holosteoides, frangula alnus, hypochaeris radicata, dryopteris carthusiana, erigeron canadensis