artemisia absinthium, potentilla argentea, artemisia campestris, berteroa incana, capsella bursa-pastoris, achillea millefolium, bromus hordeaceus, bromus tectorum, dactylis glomerata, elymus repens, erigeron canadensis, euphorbia cyparissias, lolium perenne, poa angustifolia, chenopodium album