nl, alkmaar en omgeving, carex arenaria, cerastium semidecandrum, sedum acre, thinopyrum junceiforme, corynephorus canescens, phleum arenarium, agrostis stolonifera, festuca rubra, hypochaeris radicata, aira praecox, calamagrostis epigejos, salix repens, hippophae rhamnoides, arenaria serpyllifolia, ammocalamagrostis baltica, hieracium umbellatum, jacobaea vulgaris, cakile maritima, phragmites australis, lysimachia maritima, sonchus arvensis, sagina nodosa, rumex acetosella, erodium cicutarium, eryngium maritimum, juncus articulatus, rumex angiocarpus, luzula campestris, galium verum, poa pratensis, plantago coronopus, senecio vulgaris, cerastium diffusum, jasione montana, draba verna, viola tricolor, hydrocotyle vulgaris, erigeron canadensis, koeleria macrantha, cynoglossum officinale, rubus caesius, myosotis ramosissima, lotus corniculatus, leymus arenarius, veronica arvensis, eleocharis palustris, bromus hordeaceus, cirsium arvense, argentina anserina, solanum dulcamara