de, duisburg, kreisfreie stadt, ranunculus repens, ranunculus acris, holcus lanatus, poa trivialis, lolium pratense, lolium perenne, trifolium repens, cardamine pratensis, alopecurus pratensis, rumex acetosa, agrostis stolonifera, cerastium holosteoides, festuca rubra, bellis perennis, phleum pratense, poa pratensis, alopecurus geniculatus, plantago lanceolata, glyceria fluitans, plantago major, trifolium pratense, silene flos-cuculi, cynosurus cristatus, juncus effusus, scorzoneroides autumnalis, carex hirta, rumex crispus, anthoxanthum odoratum, elymus repens, cirsium arvense, bromus hordeaceus, rumex obtusifolius, dactylis glomerata, persicaria amphibia, agrostis capillaris, lysimachia nummularia, achillea millefolium, lotus pedunculatus, poa annua, glechoma hederacea, stellaria media, equisetum palustre, cirsium palustre, deschampsia cespitosa, eleocharis palustris, carex disticha, carex nigra, trifolium dubium, filipendula ulmaria, argentina anserina