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