be, arr. tongeren, rumex acetosella, agrostis capillaris, rumex angiocarpus, agrostis vinealis, calluna vulgaris, logfia minima, avenella flexuosa, festuca filiformis, ornithopus perpusillus, deschampsia flexuosa, pinus sylvestris, spergula morisonii, corynephorus canescens, quercus robur, aira praecox, molinia caerulea, hypochaeris radicata, hypericum perforatum, veronica arvensis, betula pendula, achillea millefolium, plantago lanceolata, teesdalia nudicaulis, erigeron canadensis, spergularia rubra, digitaria ischaemum, prunus serotina, erodium cicutarium, holcus lanatus, scleranthus annuus, viola arvensis, cerastium semidecandrum, carex pilulifera, aira caryophyllea, jasione montana, scleranthus polycarpos, trifolium arvense, holcus mollis, trifolium repens, danthonia decumbens, pilosella officinarum, erica tetralix, elymus repens, poa annua, vicia sativa, fallopia convolvulus, anthoxanthum aristatum, luzula campestris, galium saxatile, frangula alnus