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