sisymbrium loeselii, carduus acanthoides, lactuca serriola, poa trivialis, tripleurospermum inodorum, artemisia vulgaris, poa annua, dactylis glomerata, lipandra polysperma, atriplex sagittata, crepis biennis, erigeron canadensis, plantago major, achillea millefolium, solidago canadensis, sonchus oleraceus