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