nl, agglomeratie leiden en bollenstreek, agrostis stolonifera, trifolium repens, lolium perenne, ranunculus repens, poa trivialis, alopecurus geniculatus, holcus lanatus, poa annua, elymus repens, stellaria media, cerastium holosteoides, ranunculus acris, cirsium arvense, plantago major, rumex acetosa, glyceria fluitans, poa pratensis, polygonum aviculare, eleocharis palustris, dactylis glomerata, bellis perennis, argentina anserina, juncus articulatus, ranunculus sceleratus, phleum pratense, bolboschoenus maritimus, cardamine pratensis, persicaria amphibia, phalaris arundinacea, bromus hordeaceus, rumex crispus, alopecurus pratensis, scorzoneroides autumnalis, triglochin palustris, carex hirta, capsella bursa-pastoris, urtica dioica, persicaria hydropiper, festuca rubra, phragmites australis, rumex obtusifolius, glyceria maxima, myosotis scorpioides, agrostis capillaris, glechoma hederacea, trifolium pratense, lolium pratense, oenanthe fistulosa, cynosurus cristatus, plantago lanceolata