nl, agglomeratie leiden en bollenstreek, eleocharis palustris, juncus articulatus, agrostis stolonifera, phragmites australis, carex arenaria, calamagrostis epigejos, hydrocotyle vulgaris, salix repens, sedum acre, ranunculus flammula, cerastium semidecandrum, rubus caesius, galium palustre, stuckenia pectinata, argentina anserina, poa pratensis, festuca rubra, myriophyllum spicatum, trifolium repens, hippophae rhamnoides, parnassia palustris, lycopus europaeus, bolboschoenus maritimus, holcus lanatus, hypochaeris radicata, luzula campestris, cirsium arvense, solanum dulcamara, sagina nodosa, jacobaea vulgaris, lythrum salicaria, epipactis palustris, carex trinervis, lotus corniculatus, lysimachia maritima, galium verum, baldellia ranunculoides, cynoglossum officinale, potamogeton pusillus, cerastium holosteoides, phleum arenarium, sonchus arvensis, plantago lanceolata, juncus bufonius, poa annua, carex nigra, eupatorium cannabinum, urtica dioica, koeleria macrantha, agrostis capillaris