de, duisburg, kreisfreie stadt, alopecurus pratensis, poa trivialis, ranunculus repens, lolium perenne, cirsium arvense, rumex acetosa, arrhenatherum elatius, holcus lanatus, ranunculus acris, heracleum sphondylium, cardamine pratensis, elymus repens, dactylis glomerata, agrostis stolonifera, trifolium repens, festuca rubra, lolium pratense, plantago lanceolata, rumex crispus, phleum pratense, urtica dioica, achillea millefolium, crepis biennis, glechoma hederacea, cerastium holosteoides, lathyrus pratensis, poa pratensis, filipendula ulmaria, rumex obtusifolius, trisetum flavescens, sanguisorba officinalis, trifolium pratense, persicaria amphibia, bellis perennis, plantago major, anthriscus sylvestris, bromus hordeaceus, vicia cracca, centaurea jacea, phalaris arundinacea, symphytum officinale, potentilla reptans, silene flos-cuculi, alopecurus geniculatus, agrostis capillaris, tanacetum vulgare, cynosurus cristatus, anthoxanthum odoratum, scorzoneroides autumnalis, lysimachia nummularia