elymus repens, tragopogon dubius, convolvulus arvensis, erigeron canadensis, lactuca serriola, lactuca viminea, persicaria lapathifolia, capsella bursa-pastoris, cirsium arvense, crepis biennis, erigeron annuus, papaver rhoeas, sorghum halepense, bromus sterilis, lolium perenne, lythrum salicaria, matricaria chamomilla, poa pratensis, rumex crispus, sonchus arvensis, pilosella officinarum