nl, agglomeratie leiden en bollenstreek, carex arenaria, eryngium maritimum, sedum acre, cakile maritima, cerastium semidecandrum, phleum arenarium, thinopyrum junceiforme, hypochaeris radicata, hippophae rhamnoides, euphorbia paralias, festuca rubra, corynephorus canescens, arenaria serpyllifolia, hieracium umbellatum, solanum dulcamara, salix repens, calystegia soldanella, calamagrostis epigejos, erodium cicutarium, agrostis stolonifera, leymus arenarius, honckenya peploides, jacobaea vulgaris, phragmites australis, sonchus arvensis, thinopyrum junceum, galium verum, senecio vulgaris, cynoglossum officinale, aira praecox, silene conica, jasione montana, erigeron canadensis, ammocalamagrostis baltica, rubus caesius, claytonia perfoliata, koeleria macrantha, lotus corniculatus, diplotaxis tenuifolia, ononis spinosa, poa pratensis, plantago coronopus, plantago lanceolata, juncus articulatus, rumex acetosella, lagurus ovatus, parnassia palustris, saxifraga tridactylites, stuckenia pectinata, luzula campestris