text: grindelia squarrosa, ambrosia artemisiifolia, artemisia santonicum, bromus tectorum, cirsium arvense, convolvulus arvensis, delphinium consolida, euphorbia seguieriana, lactuca serriola, matricaria chamomilla, medicago falcata, melilotus albus, melilotus officinalis, poa angustifolia, sisymbrium loeselii, achillea millefolium, lathyrus tuberosus, linaria genistifolia