nl, agglomeratie leiden en bollenstreek, poa trivialis, agrostis stolonifera, ranunculus repens, trifolium repens, lolium perenne, holcus lanatus, alopecurus geniculatus, phalaris arundinacea, cardamine pratensis, poa annua, elymus repens, cirsium arvense, stellaria media, rumex acetosa, persicaria amphibia, cerastium holosteoides, glyceria fluitans, ranunculus acris, plantago major, juncus articulatus, alopecurus pratensis, poa pratensis, galium palustre, dactylis glomerata, bellis perennis, argentina anserina, glyceria maxima, persicaria hydropiper, eleocharis palustris, bromus hordeaceus, myosotis scorpioides, phleum pratense, rumex crispus, urtica dioica, ranunculus sceleratus, glechoma hederacea, polygonum aviculare, juncus effusus, rumex obtusifolius, lolium pratense, festuca rubra, phragmites australis, bolboschoenus maritimus, capsella bursa-pastoris, scorzoneroides autumnalis, carex hirta, rorippa amphibia, anthoxanthum odoratum, silene flos-cuculi, oenanthe fistulosa