nl, oost-zuid-holland, urtica dioica, poa trivialis, fraxinus excelsior, alnus glutinosa, ranunculus repens, glechoma hederacea, phragmites australis, galium aparine, agrostis stolonifera, phalaris arundinacea, sambucus nigra, anthriscus sylvestris, holcus lanatus, dactylis glomerata, iris pseudacorus, solanum dulcamara, acer pseudoplatanus, stellaria media, glyceria maxima, epilobium hirsutum, calystegia sepium, quercus robur, sorbus aucuparia, crataegus monogyna, dryopteris dilatata, glyceria fluitans, lemna trisulca, rubus caesius, heracleum sphondylium, cardamine pratensis, eupatorium cannabinum, elymus repens, rumex obtusifolius, cirsium arvense, spirodela polyrhiza, hedera helix, lolium perenne, equisetum arvense, geum urbanum, aegopodium podagraria, symphytum officinale, valeriana officinalis, lemna gibba, sparganium erectum, ficaria verna, galium palustre, elodea nuttallii, carex riparia, ceratophyllum demersum, juncus effusus