artemisia campestris, achillea millefolium, hypochaeris radicata, plantago lanceolata, agrostis capillaris, bromus tectorum, cerastium semidecandrum, chenopodium album, corispermum intermedium, equisetum arvense, helichrysum arenarium, poa angustifolia, silene latifolia, erigeron canadensis, trifolium arvense