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