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