elymus repens, erigeron canadensis, lactuca serriola, poa angustifolia, polygonum aviculare, sonchus arvensis, carduus acanthoides, chelidonium majus, chenopodium album, convolvulus arvensis, erysimum diffusum, melilotus albus, portulaca oleracea, robinia pseudoacacia, setaria viridis, ulmus minor