de, duisburg, kreisfreie stadt, ranunculus repens, lolium perenne, poa trivialis, holcus lanatus, dactylis glomerata, ranunculus acris, elymus repens, trifolium repens, achillea millefolium, rumex acetosa, agrostis stolonifera, rumex obtusifolius, cerastium holosteoides, urtica dioica, alopecurus pratensis, plantago major, plantago lanceolata, festuca rubra, poa pratensis, poa annua, cirsium arvense, stellaria media, heracleum sphondylium, cardamine pratensis, capsella bursa-pastoris, glechoma hederacea, agrostis capillaris, phleum pratense, arrhenatherum elatius, bromus hordeaceus, bellis perennis, lolium pratense, anthriscus sylvestris, trifolium pratense, rumex crispus, scorzoneroides autumnalis, anthoxanthum odoratum, polygonum aviculare, alopecurus geniculatus, galium aparine, lamium album, chenopodium album, tanacetum vulgare, matricaria chamomilla, cynosurus cristatus, sisymbrium officinale, glyceria fluitans, aegopodium podagraria, veronica arvensis, holcus mollis