text: malva pusilla, capsella bursa-pastoris, galinsoga parviflora, plantago lanceolata, poa annua, polygonum aviculare, verbena officinalis, amaranthus retroflexus, anthemis cotula, daucus carota, erigeron canadensis, malva neglecta, persicaria maculosa, potentilla reptans, sisymbrium officinale