echium vulgare, oenothera biennis, agrostis capillaris, erodium cicutarium, silene latifolia, bromus hordeaceus, elymus repens, artemisia vulgaris, bromus tectorum, chenopodium album, digitaria ischaemum, erigeron canadensis, festuca rubra, hypericum perforatum, papaver dubium, poa pratensis, polygonum aviculare, rumex acetosella, sisymbrium altissimum, spergularia rubra, tanacetum vulgare, trifolium arvense, crepis capillaris, geranium molle, medicago lupulina, oxalis stricta