digitaria sanguinalis, eragrostis minor, euphorbia maculata, plantago major, polygonum aviculare, amaranthus albus, artemisia vulgaris, capsella bursa-pastoris, convolvulus arvensis, galinsoga parviflora, lepidium ruderale, oxalis stricta, poa annua, portulaca oleracea, sonchus oleraceus, taraxacum minimum