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