be, arr. leuven, quercus robur, betula pendula, calluna vulgaris, castanea sativa, agrostis capillaris, prunus serotina, quercus rubra, teucrium scorodonia, pinus sylvestris, carex pilulifera, rumex angiocarpus, frangula alnus, avenella flexuosa, deschampsia flexuosa, rumex acetosella, molinia caerulea, festuca filiformis, sorbus aucuparia, lonicera periclymenum, holcus mollis, vaccinium myrtillus, cytisus scoparius, holcus lanatus, pteridium aquilinum, hypericum perforatum, hieracium umbellatum, hypochaeris radicata, danthonia decumbens, agrostis vinealis, betula pubescens, juncus effusus, luzula campestris, juncus tenuis, dryopteris dilatata, anthoxanthum odoratum, potentilla erecta, erica tetralix, achillea millefolium, salix caprea, juncus conglomeratus, ornithopus perpusillus, erigeron canadensis, fagus sylvatica, dryopteris carthusiana, cerastium fontanum, populus tremula, festuca rubra, luzula multiflora, aira praecox, hieracium laevigatum