be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, quercus robur, sorbus aucuparia, fagus sylvatica, pinus sylvestris, betula pendula, acer pseudoplatanus, potentilla indica, dryopteris dilatata, lonicera periclymenum, vaccinium myrtillus, dryopteris carthusiana, frangula alnus, ilex aquifolium, rhododendron ponticum, avenella flexuosa, amelanchier lamarckii, molinia caerulea, deschampsia flexuosa, carex pilulifera, corylus avellana, robinia pseudoacacia, juncus tenuis, teucrium scorodonia, pseudotsuga menziesii, juncus effusus, sambucus nigra, pteridium aquilinum, athyrium filix-femina, pinus nigra, silene coronaria, calluna vulgaris, hedera helix, agrostis capillaris, convallaria majalis, lamium galeobdolon, geum macrophyllum, impatiens parviflora, galeopsis tetrahit, urtica dioica, betula pubescens, galinsoga quadriradiata, pilosella aurantiaca, fraxinus excelsior, prunus avium, salix caprea, oxalis stricta, phytolacca acinosa