corispermum intermedium, carex hirta, corynephorus canescens, achillea millefolium, artemisia campestris, bromus tectorum, capsella bursa-pastoris, convolvulus arvensis, digitaria sanguinalis, erigeron canadensis, erodium cicutarium, fallopia convolvulus, festuca rubra, herniaria glabra, oenothera biennis, polygonum aviculare, potentilla argentea, scleranthus perennis, sedum acre, setaria viridis, sisymbrium officinale, viola arvensis, chenopodium album