be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, quercus robur, pinus sylvestris, sorbus aucuparia, betula pendula, pinus nigra, frangula alnus, vaccinium myrtillus, dryopteris dilatata, molinia caerulea, avenella flexuosa, silene coronaria, amelanchier lamarckii, lonicera periclymenum, deschampsia flexuosa, dryopteris carthusiana, potentilla indica, fagus sylvatica, calluna vulgaris, rhododendron ponticum, juncus tenuis, agrostis capillaris, robinia pseudoacacia, acer pseudoplatanus, teucrium scorodonia, pilosella aurantiaca, carex pilulifera, juncus effusus, corylus avellana, galinsoga quadriradiata, sambucus nigra, pseudotsuga menziesii, holcus lanatus, salix caprea, erigeron canadensis, geum macrophyllum, athyrium filix-femina, pteridium aquilinum, betula pubescens, urtica dioica, phytolacca acinosa, ilex aquifolium, oxalis stricta, epipactis helleborine, rumex angiocarpus, galeopsis tetrahit, larix kaempferi, geranium macrorrhizum