nl, noord-friesland, sonchus arvensis, cerastium semidecandrum, thinopyrum junceiforme, carex arenaria, senecio vulgaris, festuca rubra, arenaria serpyllifolia, sedum acre, viola tricolor, cerastium diffusum, phleum arenarium, jacobaea vulgaris, myosotis ramosissima, hypochaeris radicata, cakile maritima, aira praecox, erodium cicutarium, cirsium arvense, leymus arenarius, poa pratensis, veronica arvensis, draba verna, hippophae rhamnoides, elymus athericus, agrostis stolonifera, cerastium holosteoides, eryngium maritimum, thinopyrum junceum, honckenya peploides, plantago coronopus, bromus hordeaceus, hieracium umbellatum, rumex acetosella, ammocalamagrostis baltica, cirsium vulgare, cardamine hirsuta, arabidopsis thaliana, trifolium arvense, galium verum, rumex angiocarpus, vicia sativa, corynephorus canescens, lotus corniculatus, holcus lanatus, plantago lanceolata, sagina nodosa, elymus repens, geranium molle, calamagrostis epigejos, poa annua