de, duisburg, kreisfreie stadt, eryngium campestre, elymus repens, achillea millefolium, plantago lanceolata, potentilla reptans, cirsium arvense, lolium perenne, rumex thyrsiflorus, arrhenatherum elatius, poa trivialis, convolvulus arvensis, dactylis glomerata, alopecurus pratensis, poa pratensis, medicago falcata, galium verum, trisetum flavescens, trifolium repens, euphorbia esula, ranunculus bulbosus, jacobaea vulgaris, agrostis stolonifera, rumex crispus, trifolium dubium, ranunculus repens, cerastium arvense, bellis perennis, bromus hordeaceus, trifolium pratense, glechoma hederacea, ranunculus acris, capsella bursa-pastoris, allium vineale, rorippa sylvestris, medicago lupulina, urtica dioica, lotus corniculatus, cerastium holosteoides, festuca rubra, veronica arvensis, centaurea jacea, crepis biennis, plantago major, rumex acetosa, phleum pratense, tanacetum vulgare, poa annua, vicia cracca, avenula pubescens, equisetum arvense