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