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