nl, agglomeratie leiden en bollenstreek, agrostis stolonifera, lolium perenne, trifolium repens, ranunculus repens, poa trivialis, holcus lanatus, elymus repens, rumex acetosa, cirsium arvense, ranunculus acris, stellaria media, poa annua, dactylis glomerata, alopecurus geniculatus, cerastium holosteoides, bellis perennis, polygonum aviculare, plantago major, phragmites australis, cardamine pratensis, glyceria fluitans, ranunculus sceleratus, festuca rubra, phalaris arundinacea, urtica dioica, argentina anserina, persicaria amphibia, bolboschoenus maritimus, poa pratensis, glechoma hederacea, phleum pratense, bromus hordeaceus, plantago lanceolata, eleocharis palustris, capsella bursa-pastoris, alopecurus pratensis, rumex crispus, scorzoneroides autumnalis, epilobium hirsutum, trifolium pratense, glyceria maxima, rumex obtusifolius, juncus articulatus, anthoxanthum odoratum, butomus umbellatus, matricaria discoidea, anthriscus sylvestris, agrostis capillaris, sparganium erectum, ceratophyllum demersum