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