asclepias syriaca, achillea millefolium, artemisia absinthium, carduus acanthoides, linaria genistifolia, ambrosia artemisiifolia, centaurea diffusa, convolvulus arvensis, delphinium consolida, erigeron canadensis, euphorbia agraria, medicago falcata, poa angustifolia, reseda lutea, tragopogon dubius, melilotus albus