nl, agglomeratie leiden en bollenstreek, poa trivialis, ranunculus repens, phragmites australis, agrostis stolonifera, lolium perenne, phalaris arundinacea, holcus lanatus, elymus repens, cirsium arvense, urtica dioica, glyceria maxima, persicaria amphibia, rumex acetosa, trifolium repens, ranunculus acris, cerastium holosteoides, cardamine pratensis, dactylis glomerata, glechoma hederacea, alopecurus pratensis, stellaria media, epilobium hirsutum, iris pseudacorus, bellis perennis, calystegia sepium, glyceria fluitans, alopecurus geniculatus, symphytum officinale, carex riparia, galium aparine, galium palustre, plantago lanceolata, poa annua, myosotis scorpioides, valeriana officinalis, plantago major, anthriscus sylvestris, stachys palustris, argentina anserina, festuca rubra, poa pratensis, rumex obtusifolius, phleum pratense, rumex hydrolapathum, anthoxanthum odoratum, lythrum salicaria, trifolium pratense, juncus effusus, lycopus europaeus, arrhenatherum elatius