epilobium brachycarpum, erigeron canadensis, sisymbrium altissimum, lactuca serriola, setaria viridis, achillea millefolium, arenaria serpyllifolia, erodium cicutarium, medicago lupulina, papaver rhoeas, poa annua, senecio viscosus, trifolium arvense, trifolium campestre, plantago lanceolata, plantago major