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