be, arr. nivelles, castanea sativa, quercus robur, pilosella aurantiaca, silene coronaria, betula pendula, holcus lanatus, calluna vulgaris, molinia caerulea, lonicera periclymenum, corylus avellana, lathyrus latifolius, oxalis corniculata, acer pseudoplatanus, ranunculus repens, pinus sylvestris, hedera helix, quercus rubra, sorbus aucuparia, teucrium scorodonia, prunella vulgaris, prunus serotina, agrostis capillaris, frangula alnus, fagus sylvatica, hypochaeris radicata, fraxinus excelsior, geranium macrorrhizum, euphorbia lathyris, cytisus scoparius, carex pilulifera, heracleum sphondylium, juncus effusus, phytolacca acinosa, claytonia perfoliata, geranium pyrenaicum, carpinus betulus, rhododendron ponticum, achillea millefolium, anthoxanthum odoratum, papaver somniferum, cerastium fontanum, cardamine pratensis, sambucus nigra, potentilla erecta, hieracium umbellatum, potentilla indica, rumex acetosa, avenella flexuosa, juncus conglomeratus, hypericum perforatum