nl, oost-zuid-holland, poa trivialis, phalaris arundinacea, holcus lanatus, ranunculus repens, urtica dioica, phragmites australis, agrostis stolonifera, glechoma hederacea, dactylis glomerata, rumex acetosa, glyceria maxima, elymus repens, persicaria amphibia, cirsium arvense, lolium perenne, iris pseudacorus, ranunculus acris, galium palustre, alopecurus pratensis, juncus effusus, epilobium hirsutum, symphytum officinale, lythrum salicaria, trifolium repens, cirsium palustre, festuca rubra, glyceria fluitans, stellaria media, valeriana officinalis, cerastium holosteoides, cardamine pratensis, sparganium erectum, calystegia sepium, angelica sylvestris, rumex obtusifolius, galium aparine, plantago lanceolata, anthriscus sylvestris, myosotis scorpioides, arrhenatherum elatius, carex acuta, rumex hydrolapathum, solanum dulcamara, phleum pratense, filipendula ulmaria, spirodela polyrhiza, alnus glutinosa, persicaria hydropiper, poa pratensis, lemna trisulca