bromus tectorum, arenaria serpyllifolia, medicago lupulina, artemisia vulgaris, daucus carota, equisetum arvense, erigeron canadensis, oenothera biennis, papaver dubium, plantago major, poa annua, poa compressa, senecio vernalis, trifolium repens, tripleurospermum inodorum, tussilago farfara, vicia sativa, viola arvensis