artemisia vulgaris, convolvulus arvensis, elymus repens, cirsium arvense, equisetum arvense, erigeron canadensis, erodium cicutarium, mentha arvensis, persicaria amphibia, raphanus raphanistrum, sambucus racemosa, silene latifolia, sonchus arvensis, stachys palustris, tanacetum vulgare, urtica dioica