nl, agglomeratie leiden en bollenstreek, carex arenaria, calamagrostis epigejos, salix repens, sedum acre, cerastium semidecandrum, rubus caesius, agrostis stolonifera, phragmites australis, eleocharis palustris, juncus articulatus, poa pratensis, hippophae rhamnoides, hydrocotyle vulgaris, festuca rubra, galium verum, solanum dulcamara, luzula campestris, lotus corniculatus, jacobaea vulgaris, phleum arenarium, hypochaeris radicata, koeleria macrantha, plantago lanceolata, cynoglossum officinale, sonchus arvensis, arenaria serpyllifolia, argentina anserina, cirsium arvense, parnassia palustris, urtica dioica, thymus pulegioides, epipactis palustris, erodium cicutarium, galium palustre, cerastium holosteoides, trifolium repens, stuckenia pectinata, holcus lanatus, lycopus europaeus, potentilla reptans, linum catharticum, sagina nodosa, pilosella officinarum, myriophyllum spicatum, corynephorus canescens, veronica arvensis, lythrum salicaria, ranunculus flammula, saxifraga tridactylites, draba verna