nl, agglomeratie leiden en bollenstreek, agrostis stolonifera, lolium perenne, trifolium repens, ranunculus repens, poa trivialis, holcus lanatus, alopecurus geniculatus, elymus repens, rumex acetosa, cerastium holosteoides, ranunculus acris, cirsium arvense, stellaria media, poa annua, cardamine pratensis, glyceria fluitans, phalaris arundinacea, dactylis glomerata, bellis perennis, plantago major, bolboschoenus maritimus, phragmites australis, persicaria amphibia, ranunculus sceleratus, juncus articulatus, argentina anserina, urtica dioica, polygonum aviculare, poa pratensis, eleocharis palustris, triglochin palustris, alopecurus pratensis, festuca rubra, bromus hordeaceus, phleum pratense, glechoma hederacea, glyceria maxima, oenanthe fistulosa, anthoxanthum odoratum, epilobium hirsutum, galium palustre, juncus effusus, rumex crispus, myosotis scorpioides, persicaria hydropiper, rumex obtusifolius, lolium pratense, scorzoneroides autumnalis, ceratophyllum demersum, sagina procumbens