nl, agglomeratie leiden en bollenstreek, carex arenaria, sedum acre, eryngium maritimum, cerastium semidecandrum, phleum arenarium, cakile maritima, hypochaeris radicata, thinopyrum junceiforme, hippophae rhamnoides, corynephorus canescens, salix repens, phragmites australis, agrostis stolonifera, calamagrostis epigejos, juncus articulatus, festuca rubra, arenaria serpyllifolia, solanum dulcamara, euphorbia paralias, hydrocotyle vulgaris, erodium cicutarium, stuckenia pectinata, eleocharis palustris, jacobaea vulgaris, erigeron canadensis, hieracium umbellatum, aira praecox, rubus caesius, calystegia soldanella, lotus corniculatus, galium verum, rumex acetosella, jasione montana, cynoglossum officinale, senecio vulgaris, epipactis palustris, sonchus arvensis, koeleria macrantha, plantago coronopus, parnassia palustris, luzula campestris, sagina nodosa, poa pratensis, saxifraga tridactylites, silene conica, plantago lanceolata, rumex angiocarpus, draba verna, cerastium diffusum, veronica arvensis