be, arr. nivelles, castanea sativa, quercus robur, teucrium scorodonia, betula pendula, agrostis capillaris, lonicera periclymenum, quercus rubra, holcus lanatus, hedera helix, fagus sylvatica, corylus avellana, hyacinthoides non-scripta, calluna vulgaris, pinus sylvestris, cytisus scoparius, carpinus betulus, hypericum perforatum, prunus serotina, sorbus aucuparia, acer pseudoplatanus, fraxinus excelsior, avenella flexuosa, achillea millefolium, rumex acetosella, deschampsia flexuosa, prunus avium, pteridium aquilinum, hypochaeris radicata, prunella vulgaris, plantago subulata, anthoxanthum odoratum, epipactis helleborine, frangula alnus, heracleum sphondylium, polygonatum multiflorum, eupatorium cannabinum, arrhenatherum elatius, luzula campestris, ranunculus repens, ilex aquifolium, glechoma hederacea, rumex angiocarpus, mespilus germanica, plantago lanceolata, molinia caerulea, carex pilulifera, silene coronaria, rhododendron ponticum, lathyrus latifolius, trifolium repens