convolvulus arvensis, elymus repens, erigeron canadensis, lactuca serriola, persicaria lapathifolia, cirsium arvense, crepis biennis, lactuca viminea, sonchus asper, sonchus oleraceus, tragopogon dubius, bromus sterilis, capsella bursa-pastoris, delphinium hispanicum, lathyrus tuberosus, rumex crispus, sonchus arvensis, sorghum halepense