be, arr. oostende, quercus robur, lonicera periclymenum, castanea sativa, sorbus aucuparia, acer pseudoplatanus, corylus avellana, quercus rubra, prunus serotina, dryopteris dilatata, hedera helix, fagus sylvatica, sambucus nigra, betula pubescens, betula pendula, frangula alnus, fraxinus excelsior, polygonatum multiflorum, dryopteris carthusiana, pteridium aquilinum, athyrium filix-femina, ilex aquifolium, teucrium scorodonia, molinia caerulea, alnus glutinosa, crataegus monogyna, vaccinium myrtillus, lamium galeobdolon, urtica dioica, prunus avium, pinus sylvestris, anemone nemorosa, hyacinthoides non-scripta, carpinus betulus, holcus mollis, dryopteris filix-mas, glechoma hederacea, avenella flexuosa, deschampsia flexuosa, rhododendron ponticum, juncus effusus, carex pilulifera, amelanchier lamarckii, geum urbanum, circaea lutetiana, convallaria majalis, viburnum opulus, luzula pilosa, moehringia trinervia, populus canadensis, populus tremula