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