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