euphorbia maculata, amaranthus albus, amaranthus blitoides, atriplex tatarica, bromus tectorum, convolvulus arvensis, digitaria sanguinalis, eragrostis minor, erigeron canadensis, erodium cicutarium, hordeum murinum, lappula squarrosa, lepidium virginicum, lolium perenne, malva pusilla, medicago lupulina, plantago arenaria, plantago lanceolata, plantago major, polygonum aviculare, sisymbrium loeselii, tripleurospermum inodorum