reseda lutea, ambrosia artemisiifolia, cichorium intybus, cirsium arvense, convolvulus arvensis, erigeron canadensis, pilosella echioides, poa angustifolia, achillea millefolium, bromus tectorum, carduus acanthoides, delphinium consolida, jacobaea erucifolia, matricaria chamomilla, melilotus officinalis, tragopogon dubius, artemisia absinthium