nl, agglomeratie leiden en bollenstreek, carex arenaria, calamagrostis epigejos, sedum acre, cerastium semidecandrum, salix repens, agrostis stolonifera, phragmites australis, juncus articulatus, eleocharis palustris, rubus caesius, hippophae rhamnoides, solanum dulcamara, hydrocotyle vulgaris, poa pratensis, festuca rubra, phleum arenarium, jacobaea vulgaris, cynoglossum officinale, hypochaeris radicata, galium verum, sonchus arvensis, koeleria macrantha, luzula campestris, stuckenia pectinata, arenaria serpyllifolia, parnassia palustris, sagina nodosa, lotus corniculatus, cirsium arvense, erodium cicutarium, urtica dioica, epipactis palustris, argentina anserina, corynephorus canescens, aira praecox, thinopyrum junceiforme, myriophyllum spicatum, draba verna, veronica arvensis, galium palustre, saxifraga tridactylites, plantago lanceolata, holcus lanatus, rumex acetosella, myosotis ramosissima, hieracium umbellatum, cerastium holosteoides, ranunculus flammula, senecio vulgaris, erigeron canadensis