nl, noord-friesland, sonchus arvensis, cerastium semidecandrum, thinopyrum junceiforme, arenaria serpyllifolia, jacobaea vulgaris, carex arenaria, senecio vulgaris, agrostis stolonifera, festuca rubra, sedum acre, myosotis ramosissima, phleum arenarium, cirsium arvense, hippophae rhamnoides, cardamine hirsuta, veronica arvensis, cerastium diffusum, plantago coronopus, lysimachia maritima, draba verna, viola tricolor, erodium cicutarium, cakile maritima, calamagrostis epigejos, hypochaeris radicata, cirsium vulgare, aira praecox, poa pratensis, elymus athericus, cerastium holosteoides, phragmites australis, sagina nodosa, rubus caesius, ammocalamagrostis baltica, poa annua, cynoglossum officinale, holcus lanatus, geranium molle, bromus hordeaceus, eryngium maritimum, argentina anserina, erigeron canadensis, arabidopsis thaliana, leymus arenarius, bolboschoenus maritimus, trifolium repens, elymus repens, galium verum, stellaria apetala, rumex acetosella