corispermum intermedium, erigeron canadensis, salsola tragus, achillea millefolium, agrostis gigantea, apera spica-venti, artemisia campestris, bromus tectorum, bryum argenteum, ceratodon purpureus, cirsium arvense, echium vulgare, fallopia convolvulus, lepidium densiflorum, plantago lanceolata, poa annua, senecio vernalis, senecio viscosus, stellaria media, syntrichia ruralis, trifolium arvense, tussilago farfara, centaurea stoebe, erodium cicutarium