nl, oost-zuid-holland, poa trivialis, urtica dioica, ranunculus repens, phragmites australis, agrostis stolonifera, holcus lanatus, phalaris arundinacea, glechoma hederacea, glyceria maxima, lolium perenne, alnus glutinosa, dactylis glomerata, glyceria fluitans, epilobium hirsutum, elymus repens, stellaria media, calystegia sepium, galium aparine, lemna trisulca, iris pseudacorus, persicaria amphibia, cirsium arvense, spirodela polyrhiza, anthriscus sylvestris, sparganium erectum, ceratophyllum demersum, lemna gibba, elodea nuttallii, fraxinus excelsior, rumex acetosa, solanum dulcamara, trifolium repens, cardamine pratensis, ranunculus acris, rumex obtusifolius, poa annua, eupatorium cannabinum, alopecurus pratensis, juncus effusus, symphytum officinale, cerastium holosteoides, galium palustre, carex riparia, plantago major, heracleum sphondylium, nuphar lutea, lemna minor, valeriana officinalis, hydrocharis morsus-ranae, stachys palustris