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