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