nl, agglomeratie 's-gravenhage, carex arenaria, cerastium semidecandrum, sedum acre, calamagrostis epigejos, rubus caesius, salix repens, hippophae rhamnoides, phleum arenarium, agrostis stolonifera, phragmites australis, galium verum, festuca rubra, poa pratensis, cynoglossum officinale, juncus articulatus, hypochaeris radicata, luzula campestris, jacobaea vulgaris, hydrocotyle vulgaris, eleocharis palustris, koeleria macrantha, arenaria serpyllifolia, solanum dulcamara, corynephorus canescens, lotus corniculatus, myosotis ramosissima, thymus pulegioides, plantago lanceolata, sonchus arvensis, draba verna, erodium cicutarium, rumex acetosella, aira praecox, urtica dioica, saxifraga tridactylites, veronica arvensis, pilosella officinarum, cirsium arvense, parnassia palustris, holcus lanatus, epipactis palustris, cerastium holosteoides, agrostis capillaris, rumex angiocarpus, hieracium umbellatum, linum catharticum, stuckenia pectinata, euphrasia stricta, sagina nodosa, bromus hordeaceus