lepidium coronopus, persicaria maculosa, polygonum aviculare, capsella bursa-pastoris, convolvulus arvensis, digitaria sanguinalis, epilobium tetragonum, erigeron canadensis, hordeum murinum, hypochaeris radicata, lactuca serriola, lactuca virosa, oxalis stricta, plantago major, poa annua, rumex acetosa, senecio vulgaris, solanum nigrum, sonchus oleraceus, trifolium repens