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