cannabis sativa, echium vulgare, galinsoga parviflora, portulaca oleracea, solanum nigrum, bassia laniflora, capsella bursa-pastoris, erigeron canadensis, rumex acetosa, setaria pumila, amaranthus albus, cyclachaena xanthiifolia, lamium purpureum, medicago lupulina, plantago lanceolata, verbascum phlomoides