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