elymus repens, lathyrus tuberosus, ambrosia artemisiifolia, bromus squarrosus, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, echium vulgare, erigeron acris, falcaria vulgaris, medicago falcata, melilotus officinalis, onobrychis arenaria, pilosella echioides, poa compressa, sisymbrium loeselii, tragopogon dubius, trifolium arvense, lactuca serriola, matricaria chamomilla