artemisia absinthium, achillea millefolium, poa pratensis, bromus hordeaceus, descurainia sophia, cannabis sativa, capsella bursa-pastoris, carduus acanthoides, plantago major, poa annua, rumex crispus, sonchus oleraceus, trifolium repens, tripleurospermum inodorum, deschampsia cespitosa, erigeron canadensis, malva neglecta