artemisia vulgaris, arctium lappa, arctium tomentosum, ballota nigra, cirsium arvense, dactylis glomerata, elymus repens, erigeron canadensis, festuca rubra, geum urbanum, plantago major, poa annua, silene latifolia, solidago canadensis, tanacetum vulgare, chenopodium album, lactuca serriola, ranunculus acris