be, arr. antwerpen, quercus rubra, prunus serotina, pinus sylvestris, quercus robur, amelanchier lamarckii, molinia caerulea, pinus nigra, rhododendron ponticum, sorbus aucuparia, betula pendula, frangula alnus, dryopteris dilatata, avenella flexuosa, castanea sativa, deschampsia flexuosa, dryopteris carthusiana, vaccinium myrtillus, juncus tenuis, ceratocapnos claviculata, calluna vulgaris, pseudotsuga menziesii, geum macrophyllum, larix kaempferi, bidens frondosa, betula pubescens, erica tetralix, pinus strobus, lonicera periclymenum, juncus effusus, potentilla indica, fagus sylvatica, carex pilulifera, juncus canadensis, agrostis capillaris, epilobium ciliatum, picea abies, oxalis stricta, claytonia sibirica, crassula helmsii, ilex aquifolium, erigeron canadensis, larix decidua, robinia pseudoacacia, galinsoga quadriradiata, juncus bulbosus, pteridium aquilinum, pinus pinaster, silene coronaria, rumex acetosella, rumex angiocarpus