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