nl, agglomeratie leiden en bollenstreek, carex arenaria, cakile maritima, eryngium maritimum, phragmites australis, sedum acre, agrostis stolonifera, thinopyrum junceiforme, salix repens, juncus articulatus, stuckenia pectinata, hypochaeris radicata, festuca rubra, hydrocotyle vulgaris, cerastium semidecandrum, corynephorus canescens, hippophae rhamnoides, euphorbia paralias, parnassia palustris, hieracium umbellatum, eleocharis palustris, honckenya peploides, phleum arenarium, lysimachia maritima, solanum dulcamara, arenaria serpyllifolia, calamagrostis epigejos, leymus arenarius, sagina nodosa, epipactis palustris, plantago coronopus, sonchus arvensis, jasione montana, lotus corniculatus, myriophyllum spicatum, bolboschoenus maritimus, thinopyrum junceum, lythrum salicaria, schoenus nigricans, senecio vulgaris, calystegia soldanella, juncus maritimus, juncus gerardii, samolus valerandi, erigeron canadensis, ammocalamagrostis baltica, galium palustre, ranunculus flammula, argentina anserina, aira praecox, empetrum nigrum