digitaria ischaemum, corynephorus canescens, erodium cicutarium, rumex acetosella, scleranthus annuus, spergula arvensis, trifolium arvense, agrostis gigantea, artemisia vulgaris, elymus repens, equisetum arvense, erigeron canadensis, euphorbia cyparissias, pinus sylvestris, setaria viridis, teesdalia nudicaulis, vicia hirsuta